| 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. |
| 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. |
| HEXACHLORETHANE | • hexachlorethane n. Alternative form of hexachloroethane. • HEXACHLORETHANE n. a toxic crystalline compound used in smoke bombs. |
| HYDROEXTRACTORS | • hydroextractors n. Plural of hydroextractor. • HYDROEXTRACTOR n. a drying machine that works centrifugally. |
| HYDROXYAPATITES | • hydroxyapatites n. Plural of hydroxyapatite. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone. |
| HYDROXYBUTYRATE | • hydroxybutyrate n. (Chemistry) any salt or ester of hydroxybutyric acid, but especially of gamma-hydroxybutyric acid. • HYDROXYBUTYRATE n. as in gamma hydroxybutyrate, a substance that occurs naturally in the brain, used medically as a sedative but also as a recreational drug and alleged aphrodisiac. |
| HYDROXYLAPATITE | • hydroxylapatite n. Alternative spelling of hydroxyapatite. • HYDROXYLAPATITE n. a mineral of the apatite group that is rare in the ground but is the principal inorganic constituent of tooth enamel and bone. |
| LEXICOGRAPHISTS | • lexicographists n. Plural of lexicographist. • LEXICOGRAPHIST n. one who makes dictionaries. |
| METHOXYFLURANES | • methoxyfluranes n. Plural of methoxyflurane. • METHOXYFLURANE n. a potent general anaesthetic administered as a vapor. |
| NONHETEROSEXUAL | • nonheterosexual adj. Alternative form of non-heterosexual. • nonheterosexual n. Alternative form of non-heterosexual. • non-heterosexual adj. Not heterosexual. |
| PHOTOXYLOGRAPHY | • photoxylography n. A process in which a photograph is printed on wood to use as a template for engraving. • PHOTOXYLOGRAPHY n. wood engraving after a photographic impression on a woodblock. |
| XYLOTYPOGRAPHIC | • xylotypographic adj. Of or pertaining to xylotypography. • XYLOTYPOGRAPHIC adj. relating to, or printed from, wooden type. |