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[bahy-oh-kem-uh-stree] /ˌbaɪ oʊˈkɛm ə stri/
the science dealing with the chemistry of living matter.
the chemistry of living matter.
Origin of biochemistry
1880-85; bio- + chemistry
Related forms
[bahy-oh-kem-i-kuh l] /ˌbaɪ oʊˈkɛm ɪ kəl/ (Show IPA),
adjective, noun
biochemic, adjective
biochemically, adverb
biochemist, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for biochemical
  • It is considered a biochemical pesticide, since it is a naturally occurring compound.
  • Humans have a biochemical need to taste the unknown.
  • More and more drugs came on the market, offering a sophisticated biochemical arsenal for treating mental illness.
  • In this instance, the enzymes are selected to be used in biochemical processes to create materials and drugs.
  • The scientists still don't know what biochemical tricks the octopuses use to keep their venom working at freezing temperatures.
  • Its stickiness also keeps the enzymes attached to clogs or buildup, giving them time to work their biochemical magic.
  • The injected biochemical agent removes wrinkles by temporarily freezing the underlying expressive muscles.
  • Similarly, it appeared that there were certain biochemical differences between his bodily fluids and those left by the killer.
  • The madness results from an aberrant biochemical process.
  • Horton uses a wrongheaded form of this causality by embracing an ill-defined idea of a biochemical program.
British Dictionary definitions for biochemical


the study of the chemical compounds, reactions, etc, occurring in living organisms
Derived Forms
biochemical, adjective
biochemically, adverb
biochemist, noun
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 biochemical

also bio-chemical, 1851, after German biochemisch, from bio- + chemical. Related: Biochemically.



also bio-chemistry, 1857, from bio- + chemistry.

Online Etymology Dictionary, © 2010 Douglas Harper
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biochemical in Medicine

biochemistry bi·o·chem·is·try (bī'ō-kěm'ĭ-strē)

  1. The study of the chemical substances and vital processes occurring in living organisms.

  2. The chemical composition of a particular living system or biological substance.

bi'o·chem'i·cal (-ĭ-kəl) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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biochemical in Science
The scientific study of the chemical composition of living matter and of the chemical processes that go on in living organisms.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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biochemical in Culture

biochemistry definition

The study of the structure and interactions of the complex organic molecules found in 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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