plagio-

1. a combining form meaning “oblique,” used in the formation of compound words: plagioclase.

combining form

1. slanting, inclining, or obliqueplagiotropism

before vowels plagi-, word-forming element meaning “slanting, oblique,” from comb. form of Greek plagios “oblique, slanting,” from plagos “side,” from PIE *plag- “flat, spread,” from *plak- (1) “to be flat” (see placenta). pref.

1. Slanting; inclining:plagiocephaly.