| CHEMOTHERAPISTS | • chemotherapists n. Plural of chemotherapist. • CHEMOTHERAPIST n. one who practises chemotherapy. |
| HEMICRYPTOPHYTE | • hemicryptophyte n. (Botany) Any plant whose buds rest on the surface, being protected in various ways. • HEMICRYPTOPHYTE n. any perennial plant that bears its overwintering buds at soil level, where they are often partly covered by surface debris. |
| HETEROCHROMATIC | • heterochromatic adj. Having more than one colour; relating to heterochromia. • heterochromatic adj. Of light, having more than one wavelength. • heterochromatic adj. Of or relating to heterochromatin. |
| HETEROCHROMATIN | • heterochromatin n. (Cytology) Heterochromatic tightly coiled chromosome material; believed to be genetically inactive. • HETEROCHROMATIN n. densely staining chromatin that appears as nodules in or along chromosomes and contains relatively few genes. |
| HETEROSTROPHIES | • HETEROSTROPHY n. the state of being heterostrophic, consisting of unequal strophes. |
| HETEROTHALLISMS | • heterothallisms n. Plural of heterothallism. • HETEROTHALLISM n. the state of being heterothallic, also HETEROTHALLY. |
| HYETOMETROGRAPH | • HYETOMETROGRAPH n. an instrument for recording rainfall. |
| OPHTHALMOMETERS | • ophthalmometers n. Plural of ophthalmometer. • OPHTHALMOMETER n. an instrument for measuring the eye. |
| PHOTOTELEGRAPHS | • phototelegraphs n. Plural of phototelegraph. • PHOTOTELEGRAPH n. an instrument for transmitting drawings telegraphically. |
| PHOTOTELEGRAPHY | • phototelegraphy n. The fax system. • PHOTOTELEGRAPHY n. the transmission of drawings by phototelegraph. |
| TELEPHOTOGRAPHS | • telephotographs n. Plural of telephotograph. • TELEPHOTOGRAPH n. a photograph of a distant object taken by a suitable lens. |
| TELEPHOTOGRAPHY | • telephotography n. (Photography) Photography of distant subjects using a telephoto lens. • telephotography n. (Dated) The transmission of images over a distance, especially by facsimile. • TELEPHOTOGRAPHY n. the photography of distant objects (as by a camera provided with a telephoto lens). |
| THERMOCHEMISTRY | • thermochemistry n. (Chemistry, physics) The study of the thermodynamics of chemical reactions. • THERMOCHEMISTRY n. a branch of chemistry that deals with the interrelation of heat with chemical reaction or physical change of state. |
| THERMOTHERAPIES | • thermotherapies n. Plural of thermotherapy. • THERMOTHERAPY n. the treatment of a part of the body by heat. |
| THREEPENCEWORTH | • THREEPENCEWORTH n. goods to the value of threepence, also THREEPENNYWORTH. |
| THREEPENNYWORTH | • threepennyworth n. (Dated) A portion worth threepence. • THREEPENNYWORTH n. goods to the value of threepence, also THREEPENCEWORTH. |
| TRICHLOROETHANE | • trichloroethane n. (Organic chemistry) Either of two isomeric halogenated hydrocarbons, CH3-CCl3 or CH2Cl-CHCl2, that are… • trichloroethane n. (Organic chemistry) Any of many derivatives of these compounds. • TRICHLOROETHANE n. a volatile nonflammable colourless liquid with low toxicity used for cleaning electrical apparatus and as a solvent. |
| TRIHALOMETHANES | • trihalomethanes n. Plural of trihalomethane. • TRIHALOMETHANE n. any of various derivatives of methane such as chloroform, that have three halogen atoms per molecule and are formed esp. during the chlorination of drinking water. |