Etymologically
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biochemical

This is the current revision of this entry, as edited by bogdan on 1 November 2026 at 03:30. This address is a permanent link to this version.
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Pronunciation

  • /ˌbaɪəʊˈkɛmɪkəl/[1]

Etymology

It is formed from English bio- + chemical, after German biochemisch,[2][3][4][5] which the OED records from 1813.[2] Merriam-Webster treats it as a word of the international scientific vocabulary.[4][5] The prefix bio- means life.[3][6]

Earliest recorded meaning

Of or relating to the chemical substances and processes of living organisms: 1836, in the British and Foreign Medical Review.[2][4] Etymonline dates it to 1840.[3]

Semantic evolution

The adjective is older than biochemistry, which the OED records later.[2] From 1885 it was also used in alternative medicine, and in 1886 a biochemical was a chemical used for homeopathic purposes.[2] From 1931 it was applied to warfare and weapons using poisons of biological origin.[2] As a noun, a substance produced by or involved in the processes of life, it dates from about 1919.[2][4]

Timeline

  • 1836 – of the chemistry of living organisms.[2][4]
  • 1885 – in alternative medicine.[2]
  • c. 1919 – noun, a chemical of biological origin.[2][4]
  • 1931 – of warfare or weapons using toxins of biological origin.[2]

Meanings

Adjective

  1. Of or relating to biochemistry; involving the chemical reactions and substances of living organisms: The enzyme starts a biochemical chain that breaks down sugars.[4][2]
  2. Of warfare or weapons: using toxins of biological origin.[2]

Noun

  1. A substance produced by, or taking part in, the chemical processes of living organisms.[4][2]

Word family

  • biochemically
  • biochemical oxygen demand

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d e f g h Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ a b Gove, Philip Babcock, ed. (1961), Webster's Third New International Dictionary of the English Language, Unabridged, Springfield, Mass.: G. & C. Merriam
  6. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press