| ASPHYXIATORS | • asphyxiators n. Plural of asphyxiator. • ASPHYXIATOR n. one of who asphyxiates. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| HYDROXYLASES | • hydroxylases n. Plural of hydroxylase. • HYDROXYLASE n. any of a group of enzymes that catalyze oxidation reactions. |
| HYDROXYLATES | • hydroxylates v. Third-person singular simple present indicative form of hydroxylate. • HYDROXYLATE v. to introduce hydroxyl into. |
| HYDROXYUREAS | • hydroxyureas n. Plural of hydroxyurea. • HYDROXYUREA n. a drug used to treat some forms of leukemia, melanoma, and malignant tumors. |
| HYDROXYZINES | • hydroxyzines n. Plural of hydroxyzine. • HYDROXYZINE n. a compound used as an antihistamine and tranquilizer. |
| HYPEROREXIAS | • HYPEROREXIA n. compulsive overeating. |
| MORPHOSYNTAX | • morphosyntax n. (Linguistics) Morphology and syntax regarded as an interlinked unit. • morpho-syntax n. (Linguistics) The system of the internal structure of words (morphology) and the way in which words… • morpho-syntax n. (Linguistics, formal) Grammar. |
| OROPHARYNXES | • oropharynxes n. Plural of oropharynx. • OROPHARYNX n. the part of the pharynx between the soft palate and the epiglottis. |
| OXYHYDROGENS | • OXYHYDROGEN n. a mixture of hydrogen and oxygen used to provide an intense flame for welding. |
| PYRRHULOXIAS | • pyrrhuloxias n. Plural of pyrrhuloxia. • PYRRHULOXIA n. a grey-and-pink crested bunting of Central and SW North America, with a short parrot-like bill. |
| XEROPHYTISMS | • XEROPHYTISM n. being a xerophyte. |
| XYLOGRAPHERS | • xylographers n. Plural of xylographer. • XYLOGRAPHER n. one who practises xylography, the art of making engravings on wood. |
| XYLOGRAPHIES | • xylographies n. Plural of xylography. • XYLOGRAPHY n. the art of making engravings on wood, esp. for printing. |