| EXHAUSTLESSLY | • exhaustlessly adv. Without running out or coming to an end. • EXHAUSTLESS adv. inexhaustible. |
| 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. |
| EXTREMOPHILES | • extremophiles n. Plural of extremophile. • EXTREMOPHILE n. an organism that lives under extreme environmental conditions. |
| 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. |
| INEXHAUSTIBLE | • inexhaustible adj. Impossible to exhaust; unlimited. • INEXHAUSTIBLE adj. not exhaustible. |
| INEXHAUSTIBLY | • inexhaustibly adv. In an inexhaustible manner. • inexhaustibly adv. To an inexhaustible degree. • INEXHAUSTIBLE adv. not exhaustible. |
| LITHOLAPAXIES | • litholapaxies n. Plural of litholapaxy. • LITHOLAPAXY n. the operation of crushing stone in the bladder and working it out. |
| METHOXYCHLORS | • METHOXYCHLOR n. a relatively nontoxic organochlorine insecticide. |
| SEXTILLIONTHS | • sextillionths n. Plural of sextillionth. • SEXTILLIONTH n. the ordinal of a sextillion, a thousand raised to the seventh power. |
| TACHYPHYLAXES | • tachyphylaxes n. Plural of tachyphylaxis. • TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug. |
| TACHYPHYLAXIS | • tachyphylaxis n. (Medicine) A rapidly decreasing response to a drug following administration of the initial doses. • TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug. |
| XIPHIPLASTRAL | • xiphiplastral adj. Relating to a xiphiplastron. • XIPHIPLASTRAL n. a type of chelonian. |
| 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. |