| AETHEREALLY | • AETHEREAL adv. like a spirit, also ETHEREAL, ETHERIAL. |
| ETHEREALITY | • ethereality n. The quality of being ethereal. • ETHEREALITY n. the quality of being ethereal. |
| GREYWETHERS | • greywethers n. Plural of greywether. • GREYWETHER n. a sandstone boulder of South England, also GRAYWETHER. |
| HETEROCERCY | • heterocercy n. (Anatomy) unequal development of the tail lobes of fishes; the possession of a heterocercal tail. • HETEROCERCY n. the state of being heterocercal, also HETEROCERCALITY. |
| HETEROCYCLE | • heterocycle n. (Organic chemistry) A heterocyclic compound or ring. • HETEROCYCLE n. a ring composed of atoms of more than one kind. |
| HETERODYNED | • heterodyned v. Simple past tense and past participle of heterodyne. • HETERODYNE v. to change the frequency of (a signal) by imposing on a continuous wave another of slightly different length to produce beats. |
| HETERODYNES | • heterodynes v. Third-person singular simple present indicative form of heterodyne. • HETERODYNE v. to change the frequency of (a signal) by imposing on a continuous wave another of slightly different length to produce beats. |
| HETEROLYSES | • heterolyses n. Plural of heterolysis. • HETEROLYSIS n. the decomposition of a compound into two oppositely charged particles or ions. |
| HONEYEATERS | • honeyeaters n. Plural of honeyeater. • HONEYEATER n. any bird of a large Australian family. |
| HYETOMETERS | • hyetometers n. Plural of hyetometer. • HYETOMETER n. an instrument for measuring rainfall. |
| HYPEREMETIC | • hyperemetic adj. Of or relating to hyperemesis. • HYPEREMETIC adj. causing hyperemesis, excessive vomiting. |
| HYPEREXTEND | • hyperextend v. (Medicine) To extend a joint beyond its normal position in a way that stresses the ligaments, often causing injury. • HYPEREXTEND v. to extend so that the angle between bones of a joint is greater than normal. |
| HYPERMETERS | • hypermeters n. Plural of hypermeter. • HYPERMETER n. a verse which has a redundant syllable or foot; a hypercatalectic verse. |
| HYPERSTHENE | • hypersthene n. (Mineralogy) An inosilicate that is an orthorhombic pyroxene. • HYPERSTHENE n. a rock-forming orthorhombic silicate of magnesium and ferrous iron. |
| RESYNTHESES | • resyntheses n. Plural of resynthesis. • RESYNTHESIS n. a new synthesis. |