| CHRONOLOGISTS | • chronologists n. Plural of chronologist. • CHRONOLOGIST n. an expert in chronology, also CHRONOLOGER. |
| GERONTOPHOBES | • gerontophobes n. Plural of gerontophobe. • GERONTOPHOBE n. one with a morbid fear of old age. |
| GERONTOPHOBIA | • gerontophobia n. An abnormal and persistent fear of aging or growing old. • gerontophobia n. An abnormal and persistent fear of elderly individuals or people. • gerontophobia n. An aversion or hatred towards elderly people. |
| GONADOTROPHIC | • gonadotrophic adj. Of, pertaining to, or stimulating the functions of the gonads. • GONADOTROPHIC adj. stimulating the gonads, also GONADOTROPIC. |
| GONADOTROPHIN | • gonadotrophin n. Any of a group of protein hormones secreted by gonadotrope cells of the pituitary gland of vertebrates. • GONADOTROPHIN n. a substance that stimulates the gonads. |
| NEUROETHOLOGY | • neuroethology n. The study of animal behavior and its underlying control by the nervous system. • NEUROETHOLOGY n. the description of features of animal behaviour in terms of the mechanisms of the nervous system. |
| ORNITHOLOGIES | • ornithologies n. Plural of ornithology. • ORNITHOLOGY n. the study of birds. |
| ORNITHOLOGIST | • ornithologist n. A person who studies or practices ornithology. • ORNITHOLOGIST n. one who studies birds. |
| ORTHODIAGONAL | • orthodiagonal n. (Crystallography) The diagonal or lateral axis in a monoclinic crystal which is at right angles with… • ORTHODIAGONAL n. in a monoclinic crystal, that lateral axis which is perpendicular to the vertical axis. |
| ORTHOGNATHOUS | • orthognathous adj. (Anatomy) straight-jawed. • ORTHOGNATHOUS adj. having a lower jaw that neither projects nor recedes, also ORTHOGNATHIC. |
| ORTHOGONALISE | • orthogonalise v. Alternative form of orthogonalize. • ORTHOGONALISE v. to make orthogonal, also ORTHOGONALIZE. |
| ORTHOGONALITY | • orthogonality n. (Mathematics, statistics, software engineering) The property of being orthogonal. • ORTHOGONALITY n. the state of being orthogonal. |
| ORTHOGONALIZE | • orthogonalize v. (Transitive) To make orthogonal. • ORTHOGONALIZE v. to make orthogonal, also ORTHOGONALISE. |
| ORTHOHYDROGEN | • orthohydrogen n. (Physics) form of the hydrogen molecule (H2) in which the two nuclei have parallel spin; about 75% of… • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction. |
| THOROUGHGOING | • thoroughgoing adj. With great attention to detail; complete, thorough. • thorough-going adj. Alternative form of thoroughgoing. • THOROUGHGOING adj. marked by thoroughness or zeal. |