| CEPHALOTHORAX | • cephalothorax n. The fused head and thorax of spiders and crustaceans. • CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc. |
| EXHILARATIONS | • exhilarations n. Plural of exhilaration. • EXHILARATION n. the action of exhilarating. |
| EXOPHTHALMIAS | • exophthalmias n. Plural of exophthalmia. • EXOPHTHALMIA n. a protrusion of the eyeballs. |
| HAEMATOXYLINS | • haematoxylins n. Plural of haematoxylin. • HAEMATOXYLIN n. a dye obtained from logwood, also HEMATOXYLIN. |
| HAEMATOXYLONS | • HAEMATOXYLON n. any thorny leguminous tree of the genus Haematoxylon, esp. the logwood, of tropical America and SW Africa, the heartwood of which yields the dye haematoxylin. |
| HETEROSEXUALS | • heterosexuals n. Plural of heterosexual. • HETEROSEXUAL n. a heterosexual person. |
| HEXADACTYLOUS | • hexadactylous adj. (Zoology) Having six fingers or toes. • HEXADACTYLOUS adj. having six fingers, also HEXADACTYLIC. |
| HEXOBARBITALS | • HEXOBARBITAL n. a barbiturate used as a sedative and hypnotic. |
| HOMOSEXUALIST | • homosexualist n. (Rare, dated, often derogatory) Alternative form of homosexual. • HOMOSEXUALIST n. a homosexual. |
| HOMOSEXUALITY | • homosexuality n. The state of being sexually attracted primarily or exclusively to persons of the same sex, sometimes… • homosexuality n. Sexual activity with a person of the same sex, sometimes (potentially offensive) restricted to same-sex… • HOMOSEXUALITY n. the state of being homosexual. |
| HYDROXYLATING | • hydroxylating v. Present participle of hydroxylate. • HYDROXYLATE v. to introduce hydroxyl into. |
| HYDROXYLATION | • hydroxylation n. (Organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement… • HYDROXYLATION n. the act of hydroxylating. |
| LITHOLAPAXIES | • litholapaxies n. Plural of litholapaxy. • LITHOLAPAXY n. the operation of crushing stone in the bladder and working it out. |
| ULTRAORTHODOX | • ultraorthodox adj. Very orthodox, chiefly among Jewish sects. • ultra-Orthodox adj. (Of a Jew) Very strictly observant; Haredi; being either Hasidic or Litvish (Misnagdic). • ULTRAORTHODOX adj. extremely orthodox. |
| 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. |
| XIPHIPLASTRON | • xiphiplastron n. The posterior, or fourth lateral plate in the plastron of a turtle. • XIPHIPLASTRON n. in chelonians, one of the plates forming the plastron, lying posterior to the hypoplastron. |
| ZOOXANTHELLAE | • zooxanthellae n. Plural of zooxanthella. • ZOOXANTHELLA n. a symbiotic dinoflagellate of the genus Symbiodinium that lives in the tissues of a number of marine invertebrates and protists. |