Latin-origin nouns ending in -X whose plural replaces -X with a -CES form with definitions
77 entries
| FRONT | WORD | BACK | DEFINITION |
|---|---|---|---|
| F | LUX | E | [n. LUXES or LUCES] · a unit of illumination |
| — | VOX | — | [n. VOCES] · voice / [x] { voice vox § voces voices § voice voiced voices voicing § voiced } |
| — | APEX | — | [n. APEXES or APICES] · the highest point |
| — | CALX | — | [n. -ES or CALCES] · a mineral residue |
| — | CRUX | — | [n. CRUXES or CRUCES] · a basic or decisive point |
| — | FALX | — | [n. FALCES] · a sickle-shaped~ structure |
| — | IBEX | — | [n. IBEXES or IBICES] · a wild goat |
| — | BORAX | — | [n. -RAXES or -RACES] · a white crystalline compound |
| — | CALIX | — | [n. -LICES or -LIXES] · a cup (=calixes) |
| — | CALYX | — | [n. -LYXES or -LYCES] · the outer protective covering of a flower |
| — | CAREX | — | [n. CARICES] · a marsh plant |
| — | CIMEX | — | [n. -MICES] · a bedbug |
| — | CODEX | — | [n. -DEXES or -DICES] · an ancient manuscript (=codexes) |
| — | CULEX | — | [n. CULEXES or CULICES] · a mosquito (=culexes) |
| — | CYLIX | — | [n. CYLICES] · kylix «a drinking vessel» / [x] { cylix kylix § cylices kylikes kylixes } |
| — | HELIX | — | [n. -LIXES or -LICES] · something spiral in form |
| — | HYRAX | — | [n. -RAXES or -RACES] · a small, harelike mammal / [x] { hyracoid hyrax § hyraces hyracoids hyraxes § hyracoid } |
| — | INDEX | — | [n. INDEXES or INDICES] · a type of reference guide at the end of a book / ----- [v. -ED, -ING°, -ES] · to provide with an index |
| — | LATEX | — | [n. LATICES or LATEXES] · a milky liquid of certain plants |
| — | MUREX | — | [n. -RICES or -REXES] · a marine mollusk |
| — | RADIX | — | [n. -DICES or -DIXES] · the root of a plant |
| — | VARIX | — | [n. VARICES] · a varicose vein |
| — | AUSPEX | — | [n. -PICES] · a soothsayer of ancient Rome~ / [x] { auspex auspice § auspices § auspice auspices } |
| — | CAUDEX | — | [n. -DICES or -DEXES] · the woody base of some plants |
| — | CERVIX | — | [n. -VICES or -VIXES] · the neck |
| — | CORTEX | — | [n. -TICES or -TEXES] · the outer layer of an organ - CORTICAL [a.] |
| — | FORNIX | — | [n. -NICES] · an arched anatomical structure - FORNICAL [a.] |
| — | HALLUX | — | [n. -LUCES] · the big toe - HALLUCAL [a.] (=hallucal) |
| — | MATRIX | — | [n. -TRICES or -TRIXES] · something within which something else originates or develops |
| — | POLLEX | — | [n. -LICES] · the innermost digit of the forelimb - POLLICAL [a.] |
| — | SCOLEX | — | [n. -LECES or -LICES] · the knoblike head of a tapeworm |
| — | SPADIX | — | [n. -DICES or -DIXES] · a flower cluster |
| — | THORAX | — | [n. -RACES or -RAXES] · the part of the body between the neck and the abdomen - THORACAL THORACIC [a.] |
| — | VERTEX | — | [n. -TEXES or -TICES] · the highest point of something |
| — | VORTEX | — | [n. -TEXES or -TICES] · a whirling mass of fluid - VORTICAL [a.] |
| — | ANTHRAX | — | [n. -THRACES or -THRAXES] · an infectious disease (=anthraxes) |
| H | ARUSPEX | — | [n. -PICES] · haruspex «a soothsayer of ancient Rome~» / [x] { aruspex haruspex § aruspices haruspices } |
| — | EDITRIX | — | [n. -TRIXES or -TRICES] · a female editor |
| — | ORATRIX | — | [n. -TRICES] · a female orator / [x] { oratress oratrix § oratresses oratrices } |
| — | RECTRIX | — | [n. -TRICES] · a feather of a bird's tail |
| — | SIMPLEX | — | [n. -PLEXES, -PLICES, or -PLICIA] · a simple word / [x] { simplex § simplexes simplices simplicia § simplex } |
| — | TECTRIX | — | [n. -TRICES] · a small feather of a bird's wing |
| — | TORTRIX | — | [n. -TRICES or -TRIXES] · a small moth (=tortrices) |
| — | ANTHELIX | — | [n. -LICES or -LIXES] · the inner curved ridge on the cartilage of the external ear / [x] { anthelix antihelix § anthelices anthelixes antihelices antihelixes } |
| — | APPENDIX | — | [n. -DIXES or -DICES] · a collection of supplementary material at the end of a book |
| — | AVIATRIX | — | [n. -TRICES or -TRIXES] · a female aviator |
| — | CICATRIX | — | [n. -TRICES or -TRIXES] · scar tissue |
| — | EPICALYX | — | [n. -LYXES or -LYCES] · a set of bracts close to and resembling a calyx |
| — | HARUSPEX | — | [n. -PICES] · a soothsayer of ancient Rome~ / [x] { aruspex haruspex § aruspices haruspices } |
| — | HERETRIX | — | [n. -TRIXES or -TRICES] · heritrix «a female heritor» / [x] { heretrix heritrix inheritress inheritrix § heretrices heretrixes heritrices heritrixes inheritresses inheritrices inheritrixes } |
| — | HERITRIX | — | [n. -TRIXES or -TRICES] · a female heritor / [x] { heretrix heritrix inheritress inheritrix § heretrices heretrixes heritrices heritrixes inheritresses inheritrices inheritrixes } |
| — | MICROLUX | — | [n. -LUXES or -LUCES] · a unit of illumination |
| — | MILLILUX | — | [n. -LUXES or -LUCES] · a unit of illumination |
| — | PONTIFEX | — | [n. -FICES] · an ancient Roman priest |
| — | SUBINDEX | — | [n. -DEXES or -DICES] · a subfix «a distinguishing symbol or letter written below another character» |
| — | TRACTRIX | — | [n. -TRICES] · a mathematical curve |
| — | ANTIHELIX | — | [n. -LIXES or -LICES] · © the curved elevation of the cartilage of the ear, within or in front of the helix / [x] { anthelix antihelix § anthelices anthelixes antihelices antihelixes } |
| — | BISECTRIX | — | [n. -TRICES] · © the line bisecting the angle between the optic axes of a biaxial crystal |
| — | DIRECTRIX | — | [n. -TRIXES or -TRICES] · © a directress |
| — | EXECUTRIX | — | [n. -TRIXES or -TRICES] · © a woman exercising the functions of an executor |
| — | FELLATRIX | — | [n. -TRIXES or -TRICES] · derivative of fellatio |
| — | MEDIATRIX | — | [n. -TRIXES or -TRICES] · © a female mediator |
| — | NEOCORTEX | — | [n. -TEXES or -TICES] · (anatomy) the part of the cerebral cortex dealing with higher brain function |
| — | PROTHORAX | — | [n. -RAXES or -RACES] · © the first or anterior segment of the thorax in insects |
| — | SUBCORTEX | — | [n. -TEXES or -TICES] · (anatomy) the matter of the brain situated beneath the cerebral cortex |
| — | TESTATRIX | — | [n. -TRIXES or -TRICES] · © a woman who makes and leaves a will at death; a female testator (=testatrixes) |
| — | COADJUTRIX | — | [n. -TRICES] · © a female coadjutor or assistant |
| — | DOMINATRIX | — | [n. -TRICES] · a woman who is the dominant sexual partner in a sadomasochistic relationship |
| — | GENERATRIX | — | [n. -TRICES] · © that which generates; the point, or the mathematical magnitude, which, by its motion, generates another magnitude, as a line, surface, or solid; -- called also describent~ |
| — | INHERITRIX | — | [n. -TRIXES or -TRICES] · inheritress «a female inheritor» / [x] { heretrix heritrix inheritress inheritrix § heretrices heretrixes heritrices heritrixes inheritresses inheritrices inheritrixes } |
| — | MESOTHORAX | — | [n. -RAXES or -RACES] · © the middle segment of the thorax in insects |
| — | METATHORAX | — | [n. -RAXES or -RACES] · © the last or posterior segment of the thorax in insects |
| — | SUPERHELIX | — | [n. -LIXES or -LICES] · (biochemistry) a molecular structure in which a helix is coiled into a higher-order~ helix |
| — | HYDROTHORAX | — | [n. -RAXES or -RACES] · © an accumulation of serous fluid in the cavity of the chest |
| — | PNEUMOTHORAX | — | [n. -RAXES or -RACES] · © a condition in which air or other gas is present in the cavity of the chest; -- called also pneumatothorax~ |
| — | CEPHALOTHORAX | — | [n. -THORAXES or -THORACES] · © the anterior portion of any one of the Arachnida~ and higher Crustacea, consisting of the united head and thorax |
| — | ADMINISTRATRIX | — | [n. -TRICES] · © a woman who administers; esp~., one who administers the estate of an intestate, or to whom letters of administration have been granted; a female administrator |
77 entries
Copyright © 2026 Mitch Bayersdorfer · AGPL-3.0 · Thanks to Joe Petree for his definitions for these lists. · Detailed Attributions