| ACTINOIDS | • actinoids n. Plural of actinoid. • ACTINOID n. any element of a group from element number 89 (actinium) upwards, also ACTINIDE. |
| CARCINOID | • carcinoid n. (Medicine) A form of slow-growing tumour originating in the neuroendocrine system. • CARCINOID n. a benign or malignant tumour arising from the mucosa of the gastrointestinal tract. |
| CHITINOID | • chitinoid adj. Resembling chitin. • CHITINOID adj. of or like chitin, also CHITINOUS. |
| CRETINOID | • cretinoid adj. Of, pertaining to, or afflicted with cretinism. • cretinoid n. An individual who is afflicted with cretinism. • CRETINOID adj. resembling a cretin. |
| CRINOIDAL | • crinoidal adj. (Zoology) Relating to, consisting of, or containing crinoids. • CRINOIDAL adj. of or like a crinoid, a family of marine creatures. |
| CYPRINOID | • cyprinoid adj. Belonging to the suborder Cyprinoidei of the order Cypriniformes. • cyprinoid adj. Resembling the carp. • cyprinoid n. A fish of that suborder. |
| ECHINOIDS | • echinoids n. Plural of echinoid. • ECHINOID n. a sea urchin, also ECHINUS. |
| FIBRINOID | • fibrinoid adj. Resembling fibrin. • fibrinoid n. An acellular material similar to fibrin. • FIBRINOID adj. of or like fibrin. |
| HOMINOIDS | • hominoids n. Plural of hominoid. • HOMINOID n. a member of the superfamily Hominoidea, comprising man and modern apes and their extinct ancestors, also HOMINIAN. |
| PLATINOID | • platinoid adj. Of or resembling platinum. • platinoid n. (Chemistry) Any of several metals that resemble platinum in their chemistry; especially osmium, iridium and palladium. • platinoid n. An alloy of copper, nickel, tungsten, and zinc once used in heating elements. |
| QUINOIDAL | • quinoidal adj. (Organic chemistry) quinoid. • QUINOIDAL adj. of or like quinoid, a quinonoid substance. |
| RESINOIDS | • resinoids n. Plural of resinoid. • RESINOID n. a resinous substance. |
| RETINOIDS | • retinoids n. Plural of retinoid. • RETINOID n. a compound analogous to vitamin A. |
| STAMINOID | • staminoid adj. (Botany) Resembling a stamen. • STAMINOID adj. like, or metamorphosed into, a stamen. |
| TELLINOID | • TELLINOID adj. like a tellin, a kind of marine shell. |