| ARCHAEOPTERYXES | • archaeopteryxes n. Plural of archaeopteryx. • ARCHAEOPTERYX n. a Jurassic fossil bird of the Archaeopteryx genus, with a long bony tail, sharp-toothed jaws, and wings bearing three clawed digits. |
| CEPHALOTHORAXES | • cephalothoraxes n. Plural of cephalothorax. • CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc. |
| CHEMOTAXONOMIES | • chemotaxonomies n. Plural of chemotaxonomy. • CHEMOTAXONOMY n. the classification of plants and animals based on similarities and differences in biochemical composition. |
| DEXAMPHETAMINES | • DEXAMPHETAMINE n. the dextrorotatory isomer of amphetamine, used as a stimulant. |
| EXHAUSTLESSNESS | • exhaustlessness n. (Dated) inexhaustibility; infinite supply. • EXHAUSTLESS n. inexhaustible. |
| EXOTHERMICITIES | • exothermicities n. Plural of exothermicity. • EXOTHERMICITY n. the state of being exothermic. |
| EXTINGUISHMENTS | • extinguishments n. Plural of extinguishment. • EXTINGUISHMENT n. the act of extinguishing. |
| HETEROFLEXIBLES | • heteroflexibles n. Plural of heteroflexible. • HETEROFLEXIBLE n. one of flexible sexual orientation. |
| HETEROSEXUALITY | • heterosexuality n. The state of being sexually and romantically attracted primarily or exclusively to persons of the opposite sex. • heterosexuality n. Sexual activity with a person of the opposite sex. • HETEROSEXUALITY n. the state of being heterosexual. |
| HEXOSAMINIDASES | • hexosaminidases n. Plural of hexosaminidase. • HEXOSAMINIDASE n. either of two hydrolytic enzymes that catalyze the splitting off of a hexose from a ganglioside and are deficient in some metabolic diseases. |
| HEXYLRESORCINOL | • hexylresorcinol n. (Organic chemistry) A hexyl derivative of resorcinol that has anaesthetic, antiseptic and antihelmintic properties. • HEXYLRESORCINOL n. a crystalline phenol used as an antiseptic and anthelmintic. |
| HIERACOSPHINXES | • hieracosphinxes n. Plural of hieracosphinx. • HIERACOSPHINX n. in ancient Egyptian art, a hawk-headed sphinx. |
| HOMOSEXUALITIES | • homosexualities n. Plural of homosexuality. • HOMOSEXUALITY n. the state of being homosexual. |
| HYPEREXCRETIONS | • HYPEREXCRETION n. excessive excretion. |
| HYPEREXTENSIONS | • hyperextensions n. Plural of hyperextension. • HYPEREXTENSION n. the extension of a joint beyond its normal range. |
| METHOXYBENZENES | • methoxybenzenes n. Plural of methoxybenzene. • METHOXYBENZENE n. another name for anisole, a colourless liquid ether. |
| METHOXYFLURANES | • methoxyfluranes n. Plural of methoxyflurane. • METHOXYFLURANE n. a potent general anaesthetic administered as a vapor. |
| METHYLXANTHINES | • methylxanthines n. Plural of methylxanthine. • METHYLXANTHINE n. a methylated xanthine derivative, such as caffeine, theobromine, or theophylline. |
| NONHETEROSEXUAL | • nonheterosexual adj. Alternative form of non-heterosexual. • nonheterosexual n. Alternative form of non-heterosexual. • non-heterosexual adj. Not heterosexual. |