prebiological: Meaning and Definition of

pre•bi•o•log•i•cal

Pronunciation: (prē"bī-u-loj'i-kul), [key]
— adj.
  1. of or pertaining to chemicals or environmental conditions existing before the development of the first living things.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.