| CANTHAXANTHINES | • CANTHAXANTHINE n. a naturally occurring carotenoid used esp. as a color additive for food, also CANTHAXANTHIN. |
| CHEMOTAXONOMIST | • chemotaxonomist n. One who studies chemotaxonomy. • CHEMOTAXONOMIST n. one who practises chemotaxonomy. |
| EXHIBITIONISTIC | • exhibitionistic adj. Having a tendency toward exhibitionism. • EXHIBITIONISTIC adj. characterised by exhibitionism. |
| EXOERYTHROCYTIC | • exoerythrocytic adj. Outside of an erythrocyte. • EXOERYTHROCYTIC adj. occurring outside the red blood cells. |
| EXOTHERMICITIES | • exothermicities n. Plural of exothermicity. • EXOTHERMICITY n. the state of being exothermic. |
| EXTINGUISHMENTS | • extinguishments n. Plural of extinguishment. • EXTINGUISHMENT n. the act of extinguishing. |
| HETEROSEXUALITY | • heterosexuality n. The state of being sexually and romantically attracted primarily or exclusively to persons of the opposite sex. • heterosexuality n. Sexual activity with a person of the opposite sex. • HETEROSEXUALITY n. the state of being heterosexual. |
| HYDROXYAPATITES | • hydroxyapatites n. Plural of hydroxyapatite. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone. |
| HYDROXYLAPATITE | • hydroxylapatite n. Alternative spelling of hydroxyapatite. • HYDROXYLAPATITE n. a mineral of the apatite group that is rare in the ground but is the principal inorganic constituent of tooth enamel and bone. |
| HYPEREXCITEMENT | • hyperexcitement n. A state of very high excitement. • HYPEREXCITEMENT n. the state of being hyperexcited. |
| METHYLXANTHINES | • methylxanthines n. Plural of methylxanthine. • METHYLXANTHINE n. a methylated xanthine derivative, such as caffeine, theobromine, or theophylline. |
| PHOTOEXCITATION | • photoexcitation n. (Chemistry) The formation of an excited state by the absorption of a photon. • PHOTOEXCITATION n. the process of exciting the atoms or molecules of a substance by the absorption of radiant energy. |
| PHOTOOXIDATIONS | • photooxidations n. Plural of photooxidation. • PHOTOOXIDATION n. oxidation under the influence of radiant energy, as light. |
| PHOTOTOXICITIES | • phototoxicities n. Plural of phototoxicity. • PHOTOTOXICITY n. the state of being phototoxic. |
| PHYTOTOXICITIES | • phytotoxicities n. Plural of phytotoxicity. • PHYTOTOXICITY n. the state of being phytotoxic. |