7- and 8-letter words ending with the suffix -OID with definitions
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185 total entries across 2 section(s)
| FRONT | WORD | BACK | DEFINITION |
|---|---|---|---|
| — | ACAROID | — | [a.] · resembling an acarid «a type of arachnid» |
| — | ADENOID | S | [n. -S] · an enlarged lymphoid growth behind the pharynx |
| — | AGATOID | — | < AGATE, [n. -S] · a variety of quartz - AGATOID [a.] |
| — | AMBROID | S | [n. -S] · a synthetic amber / [x] { amberoid ambroid § amberoids ambroids } |
| — | AMEBOID | — | < AMEBA, [n. -BAS or -BAE] · amoeba - AMEBAN AMEBIC AMEBOID [a.] / [x] { ameban amebic ameboid amoeban amoebic amoeboid } |
| — | AMYLOID | S | [n. -S] · a hard protein deposit resulting from degeneration of tissue |
| — | ANDROID | S | [n. -S] · a synthetic man / [x] { android droid § androids droids } |
| — | ANEROID | S | [n. -S] · a type of barometer |
| — | ANTHOID | — | [a.] · resembling a flower |
| — | CACTOID | — | < CACTUS, [n. -TI or -TUSES] · a plant native to arid regions - CACTOID [a.] |
| — | CESTOID | S | [n. -S] · cestode «a tapeworm» / [x] { cestode cestoid § cestodes cestoids } |
| — | CHELOID | S | [n. -S] · keloid «a scar caused by excessive growth of fibrous tissue» / [x] { cheloid keloid § cheloids keloids § cheloid keloid keloids § keloidal } |
| — | CHOROID | S | [n. -S] · a membrane of the eye / [x] { chorioid choroid § chorioids choroids } |
| — | CIRSOID | — | [a.] · varicose |
| — | CISSOID | S | [n. -S] · a type of geometric curve |
| — | COCCOID | S | [n. -S] · a spherical cell or body |
| — | COLLOID | S | [n. -S] · a type of chemical suspension |
| — | CORMOID | — | < CORM, [n. -S] · a stem of certain plants - CORMOID CORMOUS CORMLIKE [a.] |
| — | CRICOID | S | [n. -S] · a cartilage of the larynx |
| — | CRINOID | S | [n. -S] · a marine animal |
| — | CTENOID | — | [a.] · comblike «resembling a comb» |
| — | CYCLOID | S | [n. -S] · a geometric curve |
| — | CYSTOID | S | [n. -S] · a cyst-like~ structure |
| — | DELTOID | S | [n. -S] · a shoulder muscle / [x] { deltoid deltoideus § deltoidei deltoids § deltoid deltoideus } |
| — | DENTOID | — | [a.] · resembling a tooth |
| — | DERMOID | S | [n. -S] · a cystic tumor |
| — | DESMOID | S | [n. -S] · a very hard tumor |
| — | DIPLOID | SY | [n. -S] · a cell having the basic chromosome number doubled |
| — | DISCOID | S | [n. -S] · a disk / [x] { disc discoid disk § discoids discs disks § disced discing discs disked disking disks } |
| — | EMEROID | S | [n. -S] · emerod «a tumor» / [x] { emerod emeroid § emerods emeroids } |
| — | ERICOID | — | [a.] · resembling heath |
| — | ETHMOID | S | [n. -S] · a bone of the nasal cavity |
| — | EUPLOID | SY | [n. -S] · a cell having three or more identical genomes |
| — | FACTOID | S | [n. -S] · a brief news item |
| — | FIBROID | S | [n. -S] · a fibroma «a benign tumor composed of fibrous tissue» |
| — | FUNGOID | S | [n. -S] · a growth resembling a fungus |
| — | GLENOID | — | [a.] · having the shallow or slightly cupped form of a bone socket |
| — | GLOBOID | S | [n. -S] · a spheroid |
| — | GOBIOID | S | [n. -S] · a fish of the goby family |
| — | HAEMOID | — | [a.] · hemoid «hemal» / [x] { haemal haematal haemic haemoid hemal hematal hematoid hemic hemoid } |
| — | HAPLOID | SY | [n. -S] · a cell having only one set of chromosomes / [x] { haploids § haploid haploidic } |
| — | HISTOID | — | [a.] · pertaining to connective tissue |
| — | HYALOID | S | [n. -S] · a membrane of the eye |
| — | HYDROID | S | [n. -S] · a polyp |
| — | HYENOID | — | < HYENA, [n. -S] · a wolflike mammal - HYENIC HYENINE HYENOID [a.] / [x] { hyaenas hyenas § hyaenic hyenic hyenine hyenoid } |
| — | HYPNOID | — | [a.] · pertaining to hypnosis or sleep |
| — | LABROID | S | [n. -S] · a marine fish |
| — | LENTOID | S | [n. -S] · an object shaped like a lens (=lentoids) |
| — | LIANOID | — | [a.] · pertaining to a liana |
| — | LITHOID | — | [a.] · resembling stone |
| — | MASTOID | S | [n. -S] · the rear portion of the temporal bone |
| — | MATTOID | S | [n. -S] · a mentally unbalanced person |
| — | MYELOID | — | [a.] · pertaining to bone marrow |
| — | NAEVOID | — | < NAEVUS, [n. -VI] · nevus «a birthmark» - NAEVOID [a.] / [x] { naevoid nevoid } |
| — | NEGROID | S | ! [n. -S] · member of the black race |
| — | NEUROID | — | [a.] · resembling a nerve |
| — | OBOVOID | — | [a.] · ovoid with the narrow end at the base |
| — | OCELOID | — | < OCELOT, [n. -S] · an American~ wildcat - OCELOID [a.] |
| — | OCHROID | — | [a.] · ocherous «containing or resembling ocher» / [x] { ocherish ocheroid ocherous ochery ochreous ochroid ochrous ochry } |
| — | OIDIOID | — | < OIDIUM, [n. OIDIA] · a type of fungus - OIDIOID [a.] (=oidioid) |
| — | OSTEOID | S | [n. -S] · uncalcified bone matrix |
| — | PERCOID | S | [n. -S] · a spiny-finned~ fish |
| — | PHYTOID | — | [a.] · resembling a plant |
| — | PLACOID | S | [n. -S] · a fish having platelike scales |
| — | PYGMOID | — | < PYGMY, [n. -MIES] · a small person - PYGMAEAN PYGMEAN PYGMOID PYGMYISH [a.] / [x] { pigmy pygmy § pigmies pygmies § pigmy pygmaean pygmean pygmoid pygmy pygmyish } |
| — | QUINOID | S | [n. -S] · a chemical compound |
| — | RHIZOID | S | [n. -S] · a rootlike structure |
| — | SARCOID | S | [n. -S] · a disease of horses |
| — | SIALOID | — | [a.] · resembling saliva |
| — | SIGMOID | S | [n. -S] · an S-shaped curve in a bodily part |
| — | SIMIOID | — | [a.] · simious «pertaining to simians» / [x] { simioid simious } |
| — | SPAROID | S | [n. -S] · a sparid «any of a family of marine fishes» / [x] { sparid sparoid § sparids sparoids } |
| — | SPIROID | — | [a.] · resembling a spiral |
| — | SPOROID | — | [a.] · resembling a spore |
| A | STEROID | S | [n. -S] · a type of chemical compound |
| — | STYLOID | S | [n. -S] · a slender projection of bone (=styloids) |
| — | TABLOID | S | [n. -S] · a small newspaper |
| — | THEROID | — | [a.] · resembling a beast |
| — | THYROID | S | [n. -S] · an endocrine gland |
| — | TYPHOID | S | [n. -S] · an infectious disease |
| — | VALGOID | — | < VALGUS, [n. -ES] · the position of a joint that is abnormally turned outward - VALGOID [a.] |
| — | VISCOID | — | [a.] · somewhat viscid |
| — | XIPHOID | S | [n. -S] · a part of the sternum |
| — | ZEBROID | — | [a.] · pertaining to a zebra |
| — | ZINCOID | — | [a.] · zincic «pertaining to zinc» / [x] { zincic zincky zincoid zincous zincy zinky } |
| — | ZOMBOID | — | [a.] zombielike «resembling, like, or characteristic of a zombie» |
| FRONT | WORD | BACK | DEFINITION |
|---|---|---|---|
| — | ACTINOID | S | [n. -S] · an actinide «any of a series of radioactive elements» / [x] { actinide actinoid § actinides actinoids } |
| — | ALKALOID | S | [n. -S] · a type of chemical compound |
| — | AMBEROID | S | [n. -S] · ambroid «a synthetic amber» / [x] { amberoid ambroid § amberoids ambroids } |
| — | AMMONOID | S | [n. -S] · ammonite / [x] { ammonite ammonoid § ammonites ammonoids § ammonite ammonoid } |
| — | AMOEBOID | — | < AMOEBA, [n. -BAS or -BAE] · a unicellular microscopic organism - AMOEBAN AMOEBIC AMOEBOID [a.] / [x] { ameban amebic ameboid amoeban amoebic amoeboid } |
| — | ANCONOID | — | < ANCON, [n. -ES] · the elbow - ANCONAL ANCONEAL ANCONOID [a.] / [x] { ancon ancone § ancones § anconal anconeal anconoid } |
| — | ARILLOID | — | < ARIL, [n. -S] · an outer covering of certain seeds - ARILED ARILLATE ARILLOID [a.] / [x] { aril § arils § ariled arillate arilloid } |
| — | ASCONOID | — | < ASCON, [n. -S] · a type of sponge - ASCONOID [a.] |
| — | ASTEROID | S | [n. -S] · a type of celestial body |
| — | ATHETOID | — | [a.] · affected with a type of nervous disorder |
| — | AUTACOID | S | [n. -S] · a hormone / [x] { autacoid autocoid § autacoids autocoids } |
| — | AUTOCOID | S | [n. -S] · autacoid «a hormone» / [x] { autacoid autocoid § autacoids autocoids } |
| — | BOTRYOID | — | [a.] · resembling a cluster of grapes / [x] { botryoid botryose } |
| — | CANCROID | S | [n. -S] · a skin cancer |
| — | CARDIOID | S | [n. -S] · a heart-shaped~ curve |
| — | CATENOID | S | [n. -S] · a geometric surface |
| — | CENTROID | S | [n. -S] · the center of mass of an object |
| — | CERATOID | — | [a.] · hornlike «resembling a horn» / [x] { ceratoid keratoid } |
| — | CHOREOID | — | [a.] · resembling chorea «a nervous disorder» |
| — | CHORIOID | S | [n. -S] · choroid «a membrane of the eye» / [x] { chorioid choroid § chorioids choroids } |
| — | CLUPEOID | S | [n. -S] · a clupeid «a fish of the herring family» / [x] { clupeid clupeoid § clupeids clupeoids } |
| — | CONCHOID | S | [n. -S] · a type of geometric curve |
| — | CORACOID | S | [n. -S] · a bone of the shoulder girdle |
| — | CORONOID | — | [a.] · crown-shaped~ |
| — | COTYLOID | — | [a.] · cup-shaped~ |
| — | DENDROID | S | [n. -S] · a fossil marine invertebrate (=dendroids) |
| — | ECHINOID | S | [n. -S] · a spiny marine animal |
| — | ELYTROID | — | < ELYTRON, [n. -TRA] · a hardened forewing of certain insects - ELYTROID ELYTROUS [a.] / [x] { elytroid elytrous } |
| — | EMBRYOID | S | [n. -S] · a mass of tissue that resembles an embryo |
| — | EMULSOID | S | [n. -S] · a liquid dispersed in another liquid |
| — | GABBROID | — | < GABBRO, [n. -BROS] · a type of rock - GABBROIC GABBROID [a.] |
| — | GROUPOID | S | [n. -S] · a type of mathematical set |
| — | GYNECOID | — | [a.] · resembling a woman |
| — | HELICOID | S | [n. -S] · a type of geometrical surface |
| — | HEMATOID | — | [a.] · resembling blood / [x] { haemal haematal haemic haemoid hemal hematal hematoid hemic hemoid } |
| — | HOMINOID | S | [n. -S] · a manlike animal |
| — | HUMANOID | S | [n. -S] · something having human form |
| — | HYRACOID | S | [n. -S] · a hyrax «a small, harelike mammal» |
| — | INDIGOID | S | [n. -S] · a blue dye |
| — | ISTHMOID | — | [a.] · isthmic «pertaining to an isthmus» |
| — | KERATOID | — | [a.] · horny / [x] { ceratoid keratoid } |
| — | LAMBDOID | — | < LAMBDA, [n. -S] · a Greek letter - LAMBDOID [a.] |
| — | LEMUROID | S | [n. -S] · a lemur / [x] { lemur lemuroid § lemuroids lemurs } |
| — | LIGULOID | — | < LIGULA, [n. -LAE or -LAS] · a strap-shaped~ organ or part - LIGULAR LIGULATE LIGULOID [a.] / [x] { ligular ligulate liguloid } |
| — | LIMULOID | S | [n. -S] · a horseshoe crab |
| — | LYMPHOID | — | < LYMPH, [n. -S] · a body fluid containing white blood cells - LYMPHOID LYMPHOUS [a.] (=lymphous) |
| — | MANATOID | — | < MANATEE, [n. -S] · an aquatic mammal - MANATOID [a.] |
| — | MEDUSOID | S | [n. -S] · medusa |
| — | MELANOID | S | [n. -S] · a dark pigment |
| — | MUCINOID | — | < MUCIN, [n. -S] · a protein secreted by the mucous membranes - MUCINOID MUCINOUS [a.] / [x] { mucin § mucins § mucinoid mucinous } |
| — | MYCELOID | — | < MYCELIUM, [n. -LIA] · the vegetative portion of a fungus - MYCELIAL MYCELIAN MYCELOID [a.] / [x] { mycele mycelium § myceles mycelia § mycelial mycelian myceloid } |
| — | NOCTUOID | — | < NOCTUID, [n. -S] · a night-flying~ moth - NOCTUOID [a.] |
| — | NUCLEOID | S | [n. -S] · the DNA-containing~ area of certain cells |
| — | OCHEROID | — | [a.] · ocherous «containing or resembling ocher» / [x] { ocherish ocheroid ocherous ochery ochreous ochroid ochrous ochry } |
| — | OCTOPOID | — | [a.] · resembling an octopus |
| — | ODONTOID | S | [n. -S] · a toothlike vertebral projection |
| — | PARANOID | S | [n. -S] · one affected with paranoia / [x] { paranoiac paranoic paranoid § paranoiacs paranoics paranoids § paranoiac paranoic paranoid } |
| — | PAROTOID | S | [n. -S] · a gland of certain toads and frogs |
| — | PETALOID | — | [a.] · resembling a petal / [x] { petaline petaloid } |
| — | PHYLLOID | S | [n. -S] · a leaflike plant part |
| — | PLASMOID | S | [n. -S] · a type of high energy particle |
| — | POLYPOID | — | [a.] · resembling a polyp |
| — | PRISMOID | S | [n. -S] · a geometric solid |
| — | PYRANOID | — | < PYRAN, [n. -S] · a chemical compound - PYRANOID [a.] |
| — | PYRENOID | S | [n. -S] · a protein body of certain lower organisms |
| — | RACEMOID | — | [a.] · pertaining to a raceme «a mode of arrangement of flowers along an axis» |
| — | RESINOID | S | [n. -S] · a resinous substance |
| C | RETINOID | S | [n. -S] · a compound analogous to vitamin A |
| — | RHOMBOID | S | [n. -S] · a type of geometric figure |
| — | SCAPHOID | S | [n. -S] · a bone of the wrist |
| — | SCHIZOID | S | [n. -S] · a person affected with a type of psychotic disorder / [x] { schizo schizoid schizophrenic § schizoids schizophrenics schizos § schizo schizoid schizophrenic } |
| — | SCINCOID | S | [n. -S] · one of a family of smooth, short-limbed~ lizards |
| — | SCIUROID | — | [a.] · resembling a squirrel |
| — | SCLEROID | — | [a.] · sclerous «hardened» / [x] { scleroid sclerous } |
| — | SEPALOID | — | < SEPAL, [n. -S] · one of the individual leaves of a calyx - SEPALED SEPALINE SEPALLED SEPALOID SEPALOUS [a.] / [x] { sepal § sepals § sepaled sepaline sepalled sepaloid sepalous } |
| — | SESAMOID | S | [n. -S] · a nodular mass of bone or cartilage |
| — | SILUROID | S | [n. -S] · a silurid «any of a family of catfishes» / [x] { silurid siluroid § silurids siluroids } |
| — | SINUSOID | S | [n. -S] · a mathematical curve |
| — | SISTROID | — | [a.] · included between the convex sides of two intersecting curves |
| — | SLEAZOID | S | [n. -S] · a person of low morals or character / [x] { sleazo sleazoid § sleazoids sleazos } |
| — | SOLENOID | S | [n. -S] · a type of electric coil |
| — | SPHENOID | S | [n. -S] · a bone of the skull |
| — | SPHEROID | S | [n. -S] · a type of geometric solid |
| — | SYCONOID | — | < SYCON, [n. -S] · a type of sponge - SYCONOID [a.] |
| — | TAENIOID | — | [a.] · of or relating to a member of the genus Taenia «cestodes» |
| — | TAPIROID | S | [n. -S] · a Tapiroidea~, a superfamily of perissodactyl mammals comprising the tapirs and extinct related forms |
| — | TECHNOID | S | [n. -S] · a technician / [x] { tec tech techie technician technoid tekkie § techies technicians technoids techs tecs tekkies § teched techs } |
| — | TERATOID | — | < TERATISM, [n. -S] · a malformed fetus - TERATOID [a.] |
| — | TETANOID | — | < TETANUS, [n. -ES] · an infectious disease - TETANOID [a.] / [x] { tetanus § tetanuses § tetanal tetanical tetanoid } |
| — | THALLOID | — | < THALLUS, [n. -LI or -LUSES] · a plant body without true root, stem, or leaf - THALLOID [a.] |
| — | THYREOID | — | [a.] · pertaining to the thyroid |
| — | THYRSOID | — | < THYRSUS, [n. -SI] · a type of flower cluster - THYRSOID [a.] / [x] { thyrse thyrsus § thyrses thyrsi § thyrsoid } |
| — | TRENDOID | S | [n. -S] · a trendy person |
| — | TRICHOID | — | [a.] · hairlike «resembling a hair» |
| — | TRIPLOID | SY | [n. -S] · a cell having a chromosome number that is three times the basic number |
| — | TROCHOID | S | [n. -S] · a type of geometric curve |
| — | TUBEROID | — | [a.] · pertaining to a tuber |
| — | VIBRIOID | — | < VIBRIO, [n. -RIOS] · any of a genus of bacteria shaped like a comma - VIBRIOID [a.] / [x] { vibrio vibrion § vibrions vibrios § vibrioid } |
| — | VIRUSOID | S | [n. -S] · a particle of RNA~ associated with some plant viruses |
Copyright © 2026 Mitch Bayersdorfer · AGPL-3.0 · Thanks to Joe Petree for his definitions for these lists. · Detailed Attributions