prebiological

[pree-bahy-uh-loj-i-kuh l]
adjective
  1. of or relating to chemicals or environmental conditions existing before the development of the first living things.
Also pre·bi·ot·ic [pree-bahy-ot-ik] /ˌpri baɪˈɒt ɪk/.

Origin of prebiological

First recorded in 1950–55; pre- + biological
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018