| 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. |
| 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. |
| HOMOEOMORPHOUS | • homoeomorphous adj. (British spelling) Alternative spelling of homeomorphous. • homœomorphous adj. Obsolete form of homoeomorphous. • HOMOEOMORPHOUS adj. of two geometrical figures, such that one can be converted into the other by distortion. |
| HYDROCEPHALOUS | • hydrocephalous adj. Having a swollen head. • hydrocephalous adj. (Medicine) Afflicted with hydrocephalus. • HYDROCEPHALOUS adj. suffering from hydrocephaly, also HYDROCEPHALIC. |
| 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. |
| HYDROSULPHIDES | • hydrosulphides n. Plural of hydrosulphide. • HYDROSULPHIDE n. a compound formed by action of hydrogen sulphide on a hydroxide. |
| HYDROSULPHITES | • hydrosulphites n. Plural of hydrosulphite. • HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent. |
| 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. |
| RHIZOCEPHALOUS | • rhizocephalous adj. Belonging to the Rhizocephala. • RHIZOCEPHALOUS adj. of or like a rhizocephalan, a cirripede parasitic on crabs. |
| 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. |
| XIPHIHUMERALIS | • xiphihumeralis n. A long, flat strip of pectoral muscle comprising a band of parallel fibres, found in felines. • XIPHIHUMERALIS n. in vertebrates, a muscle leading from the xiphoid cartilage to the humerus. |