| CHEMAUTOTROPHS | • CHEMAUTOTROPH n. an organism, such as a bacterium, that obtains its energy from inorganic reactions using simple compounds, such as ammonia or carbon dioxide. |
| HETEROCHROMOUS | • heterochromous adj. (Botany) Having the central florets of a flower head of a different colour from those of the circumference. • HETEROCHROMOUS adj. having different colors. |
| HETEROCHRONOUS | • heterochronous adj. (Paleontology) formed at different periods. • HETEROCHRONOUS adj. divergent from the normal time sequence. |
| HETEROMORPHOUS | • heteromorphous adj. (Biology) heteromorphic. • HETEROMORPHOUS adj. having different forms, also HETEROMORPHIC. |
| HETEROPHYLLOUS | • heterophyllous adj. (Botany) Having leaves of different types upon the same plant. • HETEROPHYLLOUS adj. having the foliage leaves of more than one form on the same plant or stem. |
| HOMOEOTHERMOUS | • HOMOEOTHERMOUS adj. keeping the same temperature, warm-blooded, also HOMEOTHERMAL, HOMOEOTHERMAL, HOMOEOTHERMIC, HOMOIOTHERMAL, HOMOTHERMAL, HOMOTHERMIC. |
| HYDROSULPHATES | • hydrosulphates n. Plural of hydrosulphate. • HYDROSULPHATE n. any quaternary acid salt formed by addition of an organic base to sulphuric acid, such as aniline hydrosulphate. |
| HYDROSULPHITES | • hydrosulphites n. Plural of hydrosulphite. • HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent. |
| LAUGHWORTHIEST | • LAUGHWORTHY adj. worthy of being laughed at. |
| MOUTHBREATHERS | • mouthbreathers n. Plural of mouthbreather. • mouth-breathers n. Plural of mouth-breather an alternative spelling of mouth breather. • mouth␣breathers n. Plural of mouth breather. |
| ORTHOCEPHALOUS | • orthocephalous adj. Alternative form of orthocephalic. • ORTHOCEPHALOUS adj. having a skull whose breadth is between 70 and 75 per cent of its length, also ORTHOCEPHALIC. |
| SLAUGHTERHOUSE | • slaughterhouse n. A place where animals are slaughtered. • slaughterhouse n. (Figuratively) The scene of a massacre. • SLAUGHTERHOUSE n. an establishment where animals are butchered. |
| STROPHANTHUSES | • strophanthuses n. Plural of strophanthus. • STROPHANTHUS n. a plant of the African and Asiatic genus Strophanthus, of the periwinkle family. |
| SUPERPHOSPHATE | • superphosphate n. A fertilizer produced by the action of concentrated sulfuric acid on powdered phosphate rock. • superphosphate n. A phosphate containing the greatest amount of phosphoric acid that can combine with the base. • SUPERPHOSPHATE n. acid phosphate. |
| THERIOMORPHOUS | • THERIOMORPHOUS adj. having the form of a beast, also THERIOMORPHIC. |
| THERMOPHYLLOUS | • THERMOPHYLLOUS adj. having leaves only in the warmer part of the year, deciduous. |
| THOROUGHBASSES | • thoroughbasses n. Plural of thoroughbass. • THOROUGHBASS n. esp. in baroque music, a bass part underlying a piece. |
| THOROUGHBRACES | • thoroughbraces n. Plural of thoroughbrace. • THOROUGHBRACE n. any of several leather straps supporting the body of a carriage and serving as springs. |
| THOROUGHNESSES | • thoroughnesses n. Plural of thoroughness. • THOROUGHNESS n. the state of being thorough. |
| THUNDERSHOWERS | • thundershowers n. Plural of thundershower. • THUNDERSHOWER n. a shower accompanied by lightning and thunder. |