| DEXAMPHETAMINE | • dexamphetamine n. Dextroamphetamine. • DEXAMPHETAMINE n. the dextrorotatory isomer of amphetamine, used as a stimulant. |
| EXHAUSTIVENESS | • exhaustiveness n. The state of being exhaustive. • EXHAUSTIVE n. testing all possibilities or considering all elements. |
| EXHAUSTIVITIES | • exhaustivities n. Plural of exhaustivity. • EXHAUSTIVITY n. the state of being exhaustive. |
| EXOTHERMICALLY | • exothermically adv. In an exothermic manner. • EXOTHERMIC adv. of a chemical reaction, giving out heat, also EXOTHERMAL. |
| EXTINGUISHABLE | • extinguishable adj. Able to be extinguished. • EXTINGUISHABLE adj. that can be extinguished. |
| EXTINGUISHMENT | • extinguishment n. The act of extinguishing, putting out, or quenching, or the state of being extinguished. • extinguishment n. (Law) The annihilation or extinction of a right or obligation. • EXTINGUISHMENT n. the act of extinguishing. |
| EXTRAVEHICULAR | • extravehicular adj. Relating to, on happening in, the space outside a vehicle, especially a spacecraft in space. • extra-vehicular adj. Alternative spelling of extravehicular. • EXTRAVEHICULAR adj. taking place outside a vehicle (as a spacecraft). |
| HETEROFLEXIBLE | • heteroflexible adj. Primarily heterosexual, but open to taking part in a limited amount of homosexual activity. • heteroflexible n. Someone who is heteroflexible. • HETEROFLEXIBLE n. one of flexible sexual orientation. |
| HEXACTINELLIDS | • hexactinellids n. Plural of hexactinellid. • HEXACTINELLID n. a kind of six-rayed sponge. |
| HEXAMETHONIUMS | • hexamethoniums n. Plural of hexamethonium. • HEXAMETHONIUM n. either of two compounds used as ganglionic blocking agents in the treatment of hypertension. |
| HYPERCATALEXIS | • hypercatalexis n. (Poetry) The addition of one or two syllables to the last foot of a verse. • HYPERCATALEXIS n. the state of being hypercatalectic. |
| HYPEREXCITABLE | • hyperexcitable adj. Unusually or excessively excitable. • HYPEREXCITABLE adj. excessively excitable. |
| HYPEREXCRETION | • hyperexcretion n. (Medicine) Excessive excretion. • HYPEREXCRETION n. excessive excretion. |
| HYPEREXTENDING | • hyperextending v. Present participle of hyperextend. • HYPEREXTEND v. to extend so that the angle between bones of a joint is greater than normal. |
| HYPEREXTENSION | • hyperextension n. The extension of a joint beyond its normal range; the condition of being hyperextended. • hyperextension n. An exercise performed by lying on the stomach, ideally inclined upwards as on a Roman chair to reach… • HYPEREXTENSION n. the extension of a joint beyond its normal range. |
| HYPERSEXUALITY | • hypersexuality n. The desire for sexual activity at levels high enough to be considered clinically significant. • HYPERSEXUALITY n. the state of being hypersexual. |
| METHYLXANTHINE | • methylxanthine n. (Organic chemistry) Any of a group of compounds, such as caffeine, formed through the methylation of xanthines. • METHYLXANTHINE n. a methylated xanthine derivative, such as caffeine, theobromine, or theophylline. |
| NEOORTHODOXIES | • NEOORTHODOXY n. reactionaryism. |
| UNEXTINGUISHED | • unextinguished adj. Not extinguished. • UNEXTINGUISHED adj. not extinguished. |
| XANTHOPTERINES | • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. |