| ACHROMATOUS | • achromatous adj. Lacking normal colour; colourless. • ACHROMATOUS adj. having little or no colour. |
| APOSTROPHUS | • APOSTROPHUS n. (Greek) a symbol resembling a reversed letter C used in Roman numerals to denote large numbers. |
| AUTOMORPHIC | • automorphic adj. (Geology) Describing a mineral, in an igneous rock, that is bounded by its own crystal face; euhedral, idiomorphic. • automorphic adj. (Mathematics) Describing a number whose square ends in the number itself; circular. • automorphic adj. (Mathematics) Of or pertaining to automorphy or an automorphism. |
| AUTOTROPHIC | • autotrophic adj. (Biology) Relating to the production of organic compounds from carbon dioxide as a carbon source, using… • AUTOTROPHIC adj. capable of building up food materials from inorganic matter. |
| AUXOTROPHIC | • auxotrophic adj. (Biology) Describing a strain of organism that requires a specific metabolic substance that the parent… • AUXOTROPHIC adj. requiring a specific growth substance beyond the minimum required for normal metabolism. |
| COAUTHORING | • coauthoring v. Present participle of coauthor. • co-authoring v. Present participle of co-author. • COAUTHOR v. to write together. |
| HOLOTHURIAN | • holothurian n. (Zoology) sea cucumber (of the class Holothuroidea). • HOLOTHURIAN n. any member of a class of wormlike unarmoured echinoderms, aka sea cucumbers. |
| HOUSEBOATER | • houseboater n. One who lives in a houseboat. • HOUSEBOATER n. one who lives on a houseboat. |
| ORNITHOSAUR | • ORNITHOSAUR n. a pterodactyl. |
| OUTHARBOURS | • outharbours n. Plural of outharbour. |
| PHOTOMURALS | • photomurals n. Plural of photomural. • PHOTOMURAL n. an enlarged photograph, usually several yards long. |
| PROGNATHOUS | • prognathous adj. Having jaws that project forward more than is usual. • PROGNATHOUS adj. having a jaw that projects forward, also PROGNATHIC. |
| PROTOHUMANS | • protohumans n. Plural of protohuman. • proto-humans n. Plural of proto-human. • PROTOHUMAN n. a prehistoric primate, a supposed ancestor of modern man. |
| RHIZOMATOUS | • rhizomatous adj. (Botany) Having the nature or habit of a rhizome or rootstock. • RHIZOMATOUS adj. having the form of a rhizome. |
| SHOOTAROUND | • shootaround n. (Basketball) An informal practice session. • shoot␣around v. (Film, television) To record footage in the absence of (one of the actors), with the intention of editing… • SHOOTAROUND n. an informal basketball practice or warmup before a game, during which players take turns shooting baskets. |
| TAUTOCHRONE | • tautochrone n. (Mathematics) A curve, such that a heavy body, descending along it by the action of gravity, will always… • TAUTOCHRONE n. a curve such that a particle travelling along it under gravity reaches a fixed point in the same time, no matter where it starts. |
| THARBOROUGH | • THARBOROUGH n. (Shakespeare) a mispronunciation of thirdborough, also FARBOROUGH. |
| THOROUGHWAX | • thoroughwax n. An umbelliferous plant (Bupleurum rotundifolium) with perfoliate leaves. • thoroughwax n. The thoroughwort. • THOROUGHWAX n. the plant hare's-ear, from the stem seeming to 'wax' (i.e. grow) through the leaves. |
| ULTRASMOOTH | • ultrasmooth adj. Very smooth. • ULTRASMOOTH adj. very very smooth. |
| UROCHORDATE | • urochordate n. (Zoology) Any marine invertebrate of the subphylum Urochordata; the sea squirts. • UROCHORDATE n. a member of the Urochordata, tunicates. |