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

Examples from the Web for biologically

Contemporary Examples of biologically

Historical Examples of biologically

British Dictionary definitions for biologically


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 biologically



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

biologically 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.