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biology

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bi⋅ol⋅o⋅gy

  [bahy-ol-uh-jee]
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–noun
1. the science of life or living matter in all its forms and phenomena, esp. with reference to origin, growth, reproduction, structure, and behavior.
2. the living organisms of a region: the biology of Pennsylvania.
3. the biological phenomena characteristic of an organism or a group of organisms: the biology of a worm.
Origin:
1805–15; < G Biologie. See bio-, -logy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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bi·ol·o·gy   (bī-ŏl'ə-jē)   
n.  

  1. The science of life and of living organisms, including their structure, function, growth, origin, evolution, and distribution. It includes botany and zoology and all their subdivisions.

  2. The life processes or characteristic phenomena of a group or category of living organisms: the biology of viruses.

  3. The plant and animal life of a specific area or region.


[German Biologie : Greek bio-, bio- + Greek -logiā, -logy.]
bi·ol'o·gist n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

biology

The study of life and living systems.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

biology 
1819, from Ger., from Gk. bios "life" (see bio-) + logia "study of." Suggested 1802 by Ger. naturalist G. Reinhold Treviranus and introduced as a scientific term that year in Fr. by Lamarck. Biological clock first recorded 1955. Biodegradable first attested 1961. Biorhythm is from 1960. Biochemistry is 1881; biofeedback is 1970; bioethics is 1971, from V.R. Potter's book of that name.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: bi·ol·o·gy
Pronunciation: -jE
Function: noun
Inflected Form: plural -gies
1 : a branch ofscience that deals with living organisms and vital processes
2 a : the plant and animal life of a region or environment b : the laws and phenomena relating to anorganism or group
3 : a treatise on biology
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

biology bi·ol·o·gy (bī-ŏl'ə-jē)
n.

  1. The science of life and of living organisms, including their structure, function, growth, origin, evolution, and distribution. It includes botany and zoology.

  2. The life processes or characteristic phenomena of a group or category of living organisms.

bi·ol'o·gist n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
biology   (bī-ŏl'ə-jē)  Pronunciation Key 
The scientific study of life and of living organisms. Botany, zoology, and ecology are all branches of biology.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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