| ANTIHYDROGENS | • antihydrogens n. Plural of antihydrogen. • ANTIHYDROGEN n. an antimatter form of hydrogen. |
| BODYSNATCHERS | • bodysnatchers n. Plural of bodysnatcher. • body-snatchers n. Plural of body-snatcher. • body␣snatchers n. Plural of body snatcher. |
| CHIMNEYBOARDS | • CHIMNEYBOARD n. a board blocking up a fireplace. |
| DEHYDROGENASE | • dehydrogenase n. (Biochemistry) Any of several enzymes that catalyze the removal of hydrogen (a proton) from biological compounds. • DEHYDROGENASE n. an enzyme that accelerates the removal of hydrogen from metabolites and its transfer to other substances. |
| DEHYDROGENISE | • dehydrogenise v. Alternative spelling of dehydrogenize. • DEHYDROGENISE v. to remove hydrogen from, also DEHYDROGENIZE. |
| DYSMENORRHEAL | • dysmenorrheal adj. Relating to dysmenorrhea. • DYSMENORRHEAL adj. suffering from dysmenorrhea, painful menstruation, also DYSMENORRHOEAL. |
| DYSMENORRHEAS | • dysmenorrheas n. Plural of dysmenorrhea. • DYSMENORRHEA n. painful menstruation, also DYSMENORRHOEA. |
| DYSMENORRHEIC | • dysmenorrheic adj. Of, pertaining to, or experiencing dysmenorrhea. • DYSMENORRHEIC adj. relating to dysmenorrhea, also DYSMENORRHOEIC. |
| DYSMENORRHOEA | • dysmenorrhoea n. Alternative spelling of dysmenorrhea. • dysmenorrhœa n. Obsolete form of dysmenorrhea. • DYSMENORRHOEA n. painful menstruation, also DYSMENORRHEA. |
| 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. |
| HYDNOCARPATES | • HYDNOCARPATE n. any salt or ester of hydnocarpic acid. |
| HYDROGENATORS | • hydrogenators n. Plural of hydrogenator. • HYDROGENATOR n. an agent that hydrogenates. |
| 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. |
| HYDROMEDUSANS | • HYDROMEDUSAN n. a hydromedusa, also HYDROMEDUSA, HYDROMEDUSOID. |
| 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. |
| PARAHYDROGENS | • PARAHYDROGEN n. a spin isomer of hydrogen. |
| PYRITOHEDRONS | • pyritohedrons n. Plural of pyritohedron. • PYRITOHEDRON n. a pentagonal dodecahedron. |
| SYNCHONDROSES | • synchondroses n. Plural of synchondrosis. • SYNCHONDROSIS n. synarthrosis in which the bone surfaces are connected by cartilage. |