Ter-

A common prefix meaning three, or threefold. In chemistry, a prefix joined to the names of certain compounds containing three acid atoms or radicles. monstrosities in which certain parts are inordinately enlarged through disease. 6. The ectopic. Those monstrosities in which a part is displaced through disease or injury. Other cla ifications of monstrosities have been given by Ahlfeld, Bischoff, Blumenbach, Breschet, Buffon, Fisher, Licetus, Meckel, and Otto. See Monstrosities, Table of Cla ification of, according to Geoffroy Saint-Hilaire, altered by Hirst and Piersol, under Monster. Teratogenic (ter-at-o-jen' -ik). Giving rise to teratism, or monstrosity.