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biological

or bi·o·log·ic

[bahy-uh-loj-i-kuh l or bahy-uh-loj-ik]
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adjective
  1. pertaining to biology.
  2. of or relating to the products and operations of applied biology: a biological test.
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noun
  1. Pharmacology. any substance, as a serum or vaccine, derived from animal products or other biological sources and used to treat or prevent disease.
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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for biological

Contemporary Examples

Historical Examples

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

    The Truth About Woman

    C. Gasquoine Hartley

  • But the biological objection to any such proposition is not far to seek.

    The Truth About Woman

    C. Gasquoine Hartley

  • Much has been said in justification of this view of war from the biological point of view.

    Mountain Meditations

    L. Lind-af-Hageby

  • Hybrids are regarded as inferior creatures, as biological outlaws.

    Mountain Meditations

    L. Lind-af-Hageby

  • This, we know, is the biological law, and Khalid must suffer under it.

    The Book of Khalid

    Ameen Rihani


British Dictionary definitions for biological

biological

archaic biologic

adjective
  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
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noun
  1. (usually plural) a drug, such as a vaccine, that is derived from a living organism
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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 biological

adj.

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

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Online Etymology Dictionary, © 2010 Douglas Harper

biological in Medicine

biological

(bī′ə-lŏjĭ-kəl)
adj.
  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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.