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or biologic

[bahy-uh-loj-i-kuh l] /ˌbaɪ əˈlɒdʒ ɪ kəl/
pertaining to biology.
of or relating to the products and operations of applied biology:
a biological test.
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
1855-60; biolog(y) + -ical
Related forms
biologically, adverb
nonbiological, adjective
nonbiologically, adverb
pseudobiological, adjective
pseudobiologically, adverb
semibiologic, adjective
semibiological, adjective
semibiologically, adverb
unbiological, adjective
unbiologically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for biological
Contemporary Examples
Historical Examples
  • One unobjectionable sort of psychology is biological, and studies life from the outside.

  • We must face sex problems with biological and historical knowledge.

    The Truth About Woman C. Gasquoine Hartley
  • The principal charges brought against his biological work have been inaccuracy and hasty generalization.

    Fathers of Biology Charles McRae
  • This, we know, is the biological law, and Khalid must suffer under it.

    The Book of Khalid Ameen Rihani
  • The first prerequisite for a normal mental life is the acceptance of all biological facts.

    Psychoanalysis Andr Tridon
British Dictionary definitions for biological


of or relating to biology
(of a detergent) containing enzymes said to be capable of removing stains of organic origin from items to be washed
(usually pl) a drug, such as a vaccine, that is derived from a living organism
Derived Forms
biologically, 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
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Word Origin and History for biological

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
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biological in Medicine

biological bi·o·log·i·cal (bī'ə-lŏj'ĭ-kəl)

  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.
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