| ANAPHYLAXY | • ANAPHYLAXY n. an increased susceptibility to injected foreign material, also ANAPHYLAXIS. |
| ASPHYXIANT | • asphyxiant adj. That can cause asphyxiation. • asphyxiant n. Any substance that can cause asphyxia. • ASPHYXIANT n. an agent causing asphyxiation. |
| EXANTHEMAS | • exanthemas n. Plural of exanthema. • EXANTHEMA n. a skin eruption, esp. accompanied by fever, also EXANTHEM. |
| EXHALATION | • exhalation n. The act or process of exhaling; breathing out. • exhalation n. That which is exhaled, or which rises in the form of vapor, fume, or steam. • exhalation n. A bright phenomenon; a meteor. |
| EXHILARANT | • exhilarant adj. Exciting joy, mirth, or pleasure. • exhilarant n. That which exhilarates. • EXHILARANT adj. exciting joy, mirth, or pleasure. |
| HEXACTINAL | • hexactinal adj. (Biology) Having six rays. • HEXACTINAL adj. having six rays. |
| HEXADECANE | • hexadecane n. (Organic chemistry) Any of the very many isomeric aliphatic hydrocarbons of general formula C16H34. • HEXADECANE n. the systematic name for cetane, a colourless liquid hydrocarbon. |
| HEXAGYNIAN | • HEXAGYNIAN adj. having six pistils, also HEXAGYNOUS. |
| HEXANDRIAN | • hexandrian adj. (Botany) Having six stamens. • HEXANDRIAN adj. having six stamens, also HEXANDROUS. |
| HEXANGULAR | • hexangular adj. Having six angles or corners. • HEXANGULAR adj. having six angles. |
| HEXAVALENT | • hexavalent adj. (Chemistry) Having an atomic valence of 6. • hexavalent adj. (Medicine) Having a vaccine valence of 6. • HEXAVALENT adj. having a valency of six. |
| XANTHATION | • xanthation n. (Chemistry) Conversion into a xanthate. • XANTHATION n. the formation of a xanthate, a salt of xanthic acid. |
| XANTHOMATA | • xanthomata n. Plural of xanthoma. • XANTHOMA n. a skin disease marked by the development of irregular yellowish patches upon the skin, esp. upon the eyelids. |
| XANTHOPSIA | • xanthopsia n. A visual defect, a form of chromatopsia in which everything appears yellow. • XANTHOPSIA n. a visual condition where things appear yellow. |
| XENARTHRAL | • xenarthral adj. (Zoology) Having unusual joints. • XENARTHRAL adj. having additional facets on the dorsolumbar vertebrae, like sloths, anteaters and armadillos. |
| XYLOPHAGAN | • xylophagan n. Any wood-boring marine bivalve of the genus Xylophaga, which bores into wood. • XYLOPHAGAN n. one of a tribe of beetles whose larvae bore or live in wood. |
| ZEAXANTHIN | • zeaxanthin n. (Organic chemistry) A yellow crystalline carotenoid alcohol that occurs widely with lutein, with which… |