or bi·o·log·ic

[bahy-uh-loj-i-kuh l or bahy-uh-loj-ik]
  1. Pharmacology. any substance, as a serum or vaccine, derived from animal products or other biological sources and used to treat or prevent disease.

Origin of biological

First recorded in 1855–60; biolog(y) + -ical
Related formsbi·o·log·i·cal·ly, adverbnon·bi·o·log·i·cal, adjectivenon·bi·o·log·i·cal·ly, adverbpseu·do·bi·o·log·i·cal, adjectivepseu·do·bi·o·log·i·cal·ly, adverbsem·i·bi·o·log·ic, adjectivesem·i·bi·o·log·i·cal, adjectivesem·i·bi·o·log·i·cal·ly, adverbun·bi·o·log·i·cal, adjectiveun·bi·o·log·i·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for unbiological


archaic biologic

  1. of or relating to biology
  2. (of a detergent) containing enzymes said to be capable of removing stains of organic origin from items to be washed
  1. (usually plural) a drug, such as a vaccine, that is derived from a living organism
Derived Formsbiologically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unbiological



1840, from biology + -ical. Biological clock attested from 1955; not especially of human reproductive urges until c.1991. Related: Biologically.

Online Etymology Dictionary, © 2010 Douglas Harper

unbiological in Medicine


  1. Of, relating to, caused by, or affecting life or living organisms.
  2. Having to do with biology.
  3. Related by blood, as in a child's biological parents.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.