a suffix meaning "resembling," "like," used in the formation of adjectives and nouns (and often implying an incomplete or imperfect resemblance to what is indicated by the preceding element): alkaloid; anthropoid; cardioid; cuboid; lithoid; ovoid; planetoid. Cf. -ode 1 .
[ -oeides, equiv. to -o- -O- + -eides having the form of, deriv. of eîdos form ]