bi·o·chem·is·try

[bahy-oh-kem-uh-stree]
noun
1.
the science dealing with the chemistry of living matter.
2.
the chemistry of living matter.

Origin:
1880–85; bio- + chemistry

bi·o·chem·i·cal [bahy-oh-kem-i-kuhl] , adjective, noun
bi·o·chem·ic, adjective
bi·o·chem·i·cal·ly, adverb
bi·o·chem·ist, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
biochemistry (ˌbaɪəʊˈkɛmɪstrɪ) [Click for IPA pronunciation guide]
 
n
the study of the chemical compounds, reactions, etc, occurring in living organisms
 
biochemical
 
adj
 
bio'chemically
 
adv
 
bio'chemist
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Biochemistry is always a great word to know.
So is flibbertigibbet. Does it mean:
a chattering or flighty, light-headed person.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
Etymonline
Word Origin & History

biochemistry
1881, from bio- + chemistry. Related: Biochemist (1897).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

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

  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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American Heritage
Science Dictionary
biochemistry   (bī'ō-kěm'ĭ-strē)  Pronunciation Key 
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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American Heritage
Cultural Dictionary

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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Example sentences
The findings may provide new insights into dinosaur evolution, physiology, and
  biochemistry.
Numerous challenges exist to making a feasible process of the biochemistry.
If disease strikes, treatment will be tailored to your unique genetic makeup
  and biochemistry.
Each species of bacteria may have unique biochemistry that might be of interest
  in agriculture or pharmacology.
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