an organic ion containing a negatively charged carbon atom (opposed to carbonium ion).
(chem) a negatively charged organic ion in which most of the negative charge is localized on a carbon atom Compare carbonium ion
a colorless, crystalline solid, C 12 H 11 NO 2 , moderately soluble in acetone, slightly soluble in water, less toxic than DDT, used as a contact insecticide and parasiticide. noun an organic compound of the carbamate group: used as an insecticide, esp to treat head lice
a white, crystalline, water-insoluble compound, C 12 H 9 N, usually found along with anthracene in coal tar, or synthesized: used chiefly in the manufacture of dyes. noun a colourless insoluble solid obtained from coal tar and used in the production of some dyes. Formula: C12H9N Also called diphenylenimine (daɪˌfiːnaɪˈlɛnɪmiːn)
noun an Australian eucalyptus tree, E. tessellaris, having drooping branches and grey bark Also called Moreton Bay ash