plagio-

1.
a combining form meaning “oblique,” used in the formation of compound words:
plagioclase.
Origin
combining form representing Greek plágios slanting, sideways, equivalent to plág(os) side + -ios adj. suffix
British Dictionary definitions for plagio-

plagio-

combining form
1.
slanting, inclining, or oblique: plagiotropism
Word Origin
from Greek plagios, from plagos side
Word Origin and History for plagio-

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).

plagio- in Medicine

plagio- pref.
Slanting; inclining: plagiocephaly.