| HYDROXIUMS | • HYDROXIUM n. a positive ion, H3O+, formed by the attachment of a proton to a water molecule. |
| THERMOTAXIS | • thermotaxis n. (Biology) Movement in response to temperature. • THERMOTAXIS n. movement influenced or controlled by heat. |
| XEROPHYTISM | • xerophytism n. (Botany) The adaptation of plants to habitats where water is scarce. • XEROPHYTISM n. being a xerophyte. |
| HETEROSEXISM | • heterosexism n. The assumption made when relating to others that everyone is heterosexual. • heterosexism n. Discrimination or prejudice in favor of heterosexuals. • HETEROSEXISM n. the belief that homosexuality is a perversion. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| MORPHALLAXIS | • morphallaxis n. (Biology) The regeneration of specific tissue due to loss or death of the existing tissue. • MORPHALLAXIS n. regeneration in a changed form. |
| XEROPHYTISMS | • XEROPHYTISM n. being a xerophyte. |
| EXTREMOPHILES | • extremophiles n. Plural of extremophile. • EXTREMOPHILE n. an organism that lives under extreme environmental conditions. |
| HETEROSEXISMS | • heterosexisms n. Plural of heterosexism. • HETEROSEXISM n. the belief that homosexuality is a perversion. |
| HEXAGRAMMOIDS | • HEXAGRAMMOID n. a hexagram shape. |
| XANTHOCHROISM | • xanthochroism n. Alternative form of xanthochromism. • XANTHOCHROISM n. a condition in which all skin pigments except yellow disappear. |
| HYDROXYLAMINES | • hydroxylamines n. Plural of hydroxylamine. • HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions. |
| ORTHOMYXOVIRUS | • orthomyxovirus n. (Virology) Any RNA virus of Orthomyxoviridae family characterised by having two long glycoprotein spikes. |
| XANTHOCHROISMS | • XANTHOCHROISM n. a condition in which all skin pigments except yellow disappear. |
| XANTHOCHROMIAS | • XANTHOCHROMIA n. any yellowish discoloration, esp. of the cerebrospinal fluid. |
| XEROPHTHALMIAS | • xerophthalmias n. Plural of xerophthalmia. • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA. |
| ALEXIPHARMAKONS | • ALEXIPHARMAKON n. an antidote to poison. |
| EXOTHERMICITIES | • exothermicities n. Plural of exothermicity. • EXOTHERMICITY n. the state of being exothermic. |