| ANTHOTAXIES | • anthotaxies n. Plural of anthotaxy. • ANTHOTAXY n. the arrangement of flowers on a stem or parts on a flower. |
| ANTIHELIXES | • antihelixes n. Plural of antihelix. • ANTIHELIX n. the curved elevation of the cartilage of the ear, within or in front of the helix, also ANTHELIX. |
| ASPHYXIANTS | • asphyxiants n. Plural of asphyxiant. • ASPHYXIANT n. an agent causing asphyxiation. |
| ASTAXANTHIN | • astaxanthin n. (Organic chemistry) A xanthophyll pigment that occurs widely in plants and animals, especially crustaceans. |
| EXHALATIONS | • exhalations n. Plural of exhalation. • EXHALATION n. something exhaled or given off. |
| EXHAUSTIONS | • exhaustions n. Plural of exhaustion. • EXHAUSTION n. the act of exhausting. |
| EXHILARANTS | • exhilarants n. Plural of exhilarant. • EXHILARANT n. an exhilarant medicine. |
| EXHUMATIONS | • exhumations n. Plural of exhumation. • EXHUMATION n. the act of exhuming. |
| HAEMOTOXINS | • haemotoxins n. Plural of haemotoxin. • HAEMOTOXIN n. a substance that destroys red blood cells, also HEMOTOXIN. |
| HEXASTICHON | • HEXASTICHON n. a poem or stanza of six lines, also HEXASTICH. |
| INEXHAUSTED | • inexhausted adj. Not exhausted. • INEXHAUSTED adj. (archaic) unexhausted, also UNEXHAUSTED. |
| SAXOPHONIST | • saxophonist n. A person who owns, plays or practices with the saxophone. • SAXOPHONIST n. one who plays the saxophone. |
| UNEXHAUSTED | • unexhausted adj. Not exhausted. • UNEXHAUSTED adj. not exhausted, also INEXHAUSTED. |
| XANTHATIONS | • xanthations n. Plural of xanthation. • XANTHATION n. the formation of a xanthate, a salt of xanthic acid. |
| XANTHOPHYLS | • xanthophyls n. Plural of xanthophyl. • XANTHOPHYL n. a yellow carotenoid pigment found with chlorophyll in green plants and in egg yolks, also XANTHOPHYLL. |
| XANTHOPSIAS | • XANTHOPSIA n. a visual condition where things appear yellow. |
| XIPHISTERNA | • xiphisterna n. Plural of xiphisternum. • XIPHISTERNUM n. the posterior and smallest of the three divisions of the sternum. |
| ZEAXANTHINS | • zeaxanthins n. Plural of zeaxanthin. |