| HYDROXYLATIONS | • hydroxylations n. Plural of hydroxylation. • HYDROXYLATION n. the act of hydroxylating. |
| HYPERCATALEXIS | • hypercatalexis n. (Poetry) The addition of one or two syllables to the last foot of a verse. • HYPERCATALEXIS n. the state of being hypercatalectic. |
| HYPEREXTENSION | • hyperextension n. The extension of a joint beyond its normal range; the condition of being hyperextended. • hyperextension n. An exercise performed by lying on the stomach, ideally inclined upwards as on a Roman chair to reach… • HYPEREXTENSION n. the extension of a joint beyond its normal range. |
| HYPERSEXUALITY | • hypersexuality n. The desire for sexual activity at levels high enough to be considered clinically significant. • HYPERSEXUALITY n. the state of being hypersexual. |
| LEXICOGRAPHIST | • lexicographist n. (Chiefly archaic) A student specialising in the discipline of lexicography; lexicographer. • LEXICOGRAPHIST n. one who makes dictionaries. |
| NEOORTHODOXIES | • NEOORTHODOXY n. reactionaryism. |
| ORTHOMYXOVIRUS | • orthomyxovirus n. (Virology) Any RNA virus of Orthomyxoviridae family characterised by having two long glycoprotein spikes. |
| THYROTOXICOSES | • thyrotoxicoses n. Plural of thyrotoxicosis. • THYROTOXICOSIS n. hyperthyroidism with goitre and exophthalmia, Graves' disease. |
| THYROTOXICOSIS | • thyrotoxicosis n. (Medicine) The medical condition caused by the state of raised levels of thyroid hormone. • THYROTOXICOSIS n. hyperthyroidism with goitre and exophthalmia, Graves' disease. |
| XANTHOCHROISMS | • XANTHOCHROISM n. a condition in which all skin pigments except yellow disappear. |
| XANTHOCHROMIAS | • XANTHOCHROMIA n. any yellowish discoloration, esp. of the cerebrospinal fluid. |
| XANTHOPTERINES | • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |
| XEROPHTHALMIAS | • xerophthalmias n. Plural of xerophthalmia. • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| XIPHIPLASTRALS | • XIPHIPLASTRAL n. a type of chelonian. |