| ARCHAEOPTERYX | • archaeopteryx n. Alternative spelling of archeopteryx. • Archaeopteryx prop.n. A taxonomic genus within the family Archaeopterygidae – known from fossils and widely accepted as the… • archæopteryx n. Rare spelling of archeopteryx. |
| EXECUTORSHIPS | • executorships n. Plural of executorship. • EXECUTORSHIP n. the office of executor. |
| EXHEREDATIONS | • exheredations n. Plural of exheredation. • EXHEREDATION n. the act of exheredating, disinheriting. |
| EXHIBITIONERS | • exhibitioners n. Plural of exhibitioner. • EXHIBITIONER n. a university student who has been awarded an exhibition at a university. |
| EXOTHERMICITY | • exothermicity n. (Chemistry, physics, uncountable) The quality or state of being exothermic. • exothermicity n. (Countable) The release of heat during an exothermic reaction. • EXOTHERMICITY n. the state of being exothermic. |
| EXTINGUISHERS | • extinguishers n. Plural of extinguisher. • EXTINGUISHER n. a device that extinguishes. |
| 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. |
| HETEROSEXISTS | • heterosexists n. Plural of heterosexist. • HETEROSEXIST n. one who believes that homosexuality is a perversion. |
| HETEROSEXUALS | • heterosexuals n. Plural of heterosexual. • HETEROSEXUAL n. a heterosexual person. |
| HEXAMETRISING | • HEXAMETRISE v. to put into hexameters, also HEXAMETRIZE. |
| HEXAMETRIZING | • hexametrizing v. Present participle of hexametrize. • HEXAMETRIZE v. to put into hexameters, also HEXAMETRISE. |
| HYPEREXTENDED | • hyperextended adj. Extremely long; extended greatly. • hyperextended v. Simple past tense and past participle of hyperextend. • HYPEREXTEND v. to extend so that the angle between bones of a joint is greater than normal. |
| METHOTREXATES | • methotrexates n. Plural of methotrexate. • METHOTREXATE n. a drug used in the treatment of cancer. |
| ORTHOPYROXENE | • orthopyroxene n. (Mineralogy) Any pyroxene that forms orthorhombic crystals. • ORTHOPYROXENE n. a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene. |
| XANTHOPTERINE | • xanthopterine n. Alternative form of xanthopterin. • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |