| ARCHAEOPTERYX | • archaeopteryx n. Alternative spelling of archeopteryx. • Archaeopteryx prop.n. A taxonomic genus within the family Archaeopterygidae – known from fossils and widely accepted as the… • archæopteryx n. Rare spelling of archeopteryx. |
| CEPHALOTHORAX | • cephalothorax n. The fused head and thorax of spiders and crustaceans. • CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc. |
| EXHEREDATIONS | • exheredations n. Plural of exheredation. • EXHEREDATION n. the act of exheredating, disinheriting. |
| EXHILARATIONS | • exhilarations n. Plural of exhilaration. • EXHILARATION n. the action of exhilarating. |
| HETEROSEXUALS | • heterosexuals n. Plural of heterosexual. • HETEROSEXUAL n. a heterosexual person. |
| HEXAMETRISING | • HEXAMETRISE v. to put into hexameters, also HEXAMETRIZE. |
| HEXAMETRIZING | • hexametrizing v. Present participle of hexametrize. • HEXAMETRIZE v. to put into hexameters, also HEXAMETRISE. |
| HEXOBARBITALS | • HEXOBARBITAL n. a barbiturate used as a sedative and hypnotic. |
| HYDROTHORAXES | • hydrothoraxes n. Plural of hydrothorax. • HYDROTHORAX n. water liquid in the pleural cavity. |
| HYDROXYACETIC | • HYDROXYACETIC adj. as in hydroxyacetic acid, another name for glycolic acid. |
| METHOTREXATES | • methotrexates n. Plural of methotrexate. • METHOTREXATE n. a drug used in the treatment of cancer. |
| THOROUGHWAXES | • THOROUGHWAX n. the plant hare's-ear, from the stem seeming to 'wax' (i.e. grow) through the leaves. |
| XANTHOPTERINE | • xanthopterine n. Alternative form of xanthopterin. • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |
| XANTHOPTERINS | • xanthopterins n. Plural of xanthopterin. • XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE. |
| XEROPHTHALMIA | • xerophthalmia n. (Ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become… • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| XEROPHTHALMIC | • xerophthalmic adj. Of or pertaining to xerophthalmia. • XEROPHTHALMIC adj. relating to xerophthalmia. |