| ANTIHYDROGENS | • antihydrogens n. Plural of antihydrogen. • ANTIHYDROGEN n. an antimatter form of hydrogen. |
| CHIMNEYBOARDS | • CHIMNEYBOARD n. a board blocking up a fireplace. |
| DEHYDROGENISE | • dehydrogenise v. Alternative spelling of dehydrogenize. • DEHYDROGENISE v. to remove hydrogen from, also DEHYDROGENIZE. |
| DYSMENORRHEIC | • dysmenorrheic adj. Of, pertaining to, or experiencing dysmenorrhea. • DYSMENORRHEIC adj. relating to dysmenorrhea, also DYSMENORRHOEIC. |
| HYALURONIDASE | • hyaluronidase n. (Biochemistry) Any enzyme that catalyses the hydrolysis of hyaluronic acid. • HYALURONIDASE n. a mucolytic enzyme that facilitates the spread of fluids through tissues by lowering the viscosity of hyaluronic acid. |
| HYDRASTININES | • hydrastinines n. Plural of hydrastinine. • HYDRASTININE n. a colourless crystalline water-soluble compound whose pharmacological action resembles that of hydrastine. |
| HYDROGENISING | • hydrogenising v. Present participle of hydrogenise. • HYDROGENISE v. to hydrogenate, also HYDROGENIZE. |
| HYDROKINETICS | • hydrokinetics n. (Physics) The branch of physics concerned with the movement of fluids. • HYDROKINETICS n. the study of the motion of fluids. |
| HYDROQUINONES | • hydroquinones n. Plural of hydroquinone. • HYDROQUINONE n. another name for quinol. |
| HYDROZINCITES | • hydrozincites n. Plural of hydrozincite. • HYDROZINCITE n. a monoclinic basic carbonate of zinc that is a secondary mineral occurring as light-coloured crusts on zinc deposits. |
| NEARSIGHTEDLY | • nearsightedly adv. In a nearsighted manner; as if nearsighted; myopically. • NEARSIGHTED adv. able to see near things more clearly than distant ones. |
| PHARYNGITIDES | • pharyngitides n. Plural of pharyngitis. • PHARYNGITIS n. inflammation of the pharynx. |
| PYRITOHEDRONS | • pyritohedrons n. Plural of pyritohedron. • PYRITOHEDRON n. a pentagonal dodecahedron. |
| RESYNTHESISED | • resynthesised v. Simple past tense and past participle of resynthesise. • RESYNTHESISE v. to synthesise again, also RESYNTHESIZE. |
| RESYNTHESIZED | • resynthesized v. Simple past tense and past participle of resynthesize. • resynthesized adj. Synthesized anew (especially after being metabolized). • RESYNTHESIZE v. to synthesize again, also RESYNTHESISE. |
| UNTHRIFTYHEDS | • UNTHRIFTYHED n. (Spenser) unthriftiness, also UNTHRIFTYHEAD. |