| CARTOONISH | • cartoonish adj. Exaggerated or caricatured, in the manner of a cartoon. • CARTOONISH adj. like a cartoon. | 
| CHINAROOTS | • chinaroots n. Plural of chinaroot. • china-roots n. Plural of china-root. • china␣roots n. Plural of china root. | 
| CHORIZONTS | • chorizonts n. Plural of chorizont. • CHORIZONT n. a person who disputes identity of authorship, esp. one who ascribes the Iliad and Odyssey to different authors, also CHORIZONTIST. | 
| CHRONOTRON | • CHRONOTRON n. a device for measuring very small time intervals. | 
| CTENOPHORE | • ctenophore n. Any of various marine animals of the phylum Ctenophora, having lucent, mucilaginous bodies bearing eight… • CTENOPHORE n. a member of the Ctenophora, transparent, free-swimming marine organisms resembling jellyfishes, also CTENOPHORAN. | 
| HETEROCONT | • HETEROCONT n. a kind of yellow-green alga, also HETEROKONT. | 
| MONOTROCHS | • monotrochs n. Plural of monotroch. • MONOTROCH n. (Scott) a wheelbarrow. | 
| NECROTROPH | • necrotroph n. A parasitoid that ultimately kills its host. • NECROTROPH n. a parasitic organism that kills the living cells of its host and then feeds on the dead material. | 
| NOTOCHORDS | • notochords n. Plural of notochord. • NOTOCHORD n. a backbone-like series of cells in the lowest vertebrates. | 
| OCTAHEDRON | • octahedron n. (Geometry) a polyhedron with eight faces; the regular octahedron has regular triangles as faces and… • OCTAHEDRON n. (Greek) a solid bounded by eight plane faces, also OCTOHEDRON. | 
| OCTOHEDRON | • octohedron n. Alternative form of octahedron. • OCTOHEDRON n. (Greek) a solid bounded by eight plane faces, also OCTAHEDRON. | 
| ORTHOCAINE | • orthocaine n. Methyl m-amino-p-hydroxybenzoate, a fine white crystalline powder used as an anesthetic on open wounds. • ORTHOCAINE n. a white crystalline substance used as a local anaesthetic. | 
| ORTHOGENIC | • orthogenic adj. Relating to orthogenesis. • orthogenic adj. Relating to a school or education system for children with emotional or mental disorders. • ORTHOGENIC adj. pertaining to correction of children's mental defects. | 
| ORTHOTONIC | • orthotonic adj. Orthotone. • ORTHOTONIC adj. taking an accent in certain positions but not in others, also ORTHOTONE. | 
| RHINOCEROT | • rhinocerot n. (Now rare) The rhinoceros. • RHINOCEROT n. (obsolete) a rhinoceros, also RHINOCEROS, RHINOCEROTE. | 
| STOCKHORNS | • stockhorns n. Plural of stockhorn. • STOCKHORN n. a primitive Scottish musical instrument made of a cow's horn, a sheep's thigh bone or elder pipe, with stops and a single reed. | 
| TOPNOTCHER | • topnotcher n. (Philippines) Alternative form of top-notcher. • top-notcher n. (Colloquial) Something excellent or first-rate. • TOPNOTCHER n. crude oil after some of its lighter constituents have been removed by distillation. | 
| TROCHOTRON | • TROCHOTRON n. a trochoidal magnetron, high-frequency counting tube which deflects a beam on to radially disposed electrodes. |