biogen

[ bahy-uh-juh n, -jen ]

/ ˈbaɪ ə dʒən, -ˌdʒɛn /

noun Biochemistry.

a hypothetical protein molecule, large and unstable, once assumed to be basic to fundamental biological processes.

Words nearby biogen

biofuel, biog, biog., biogas, biogasification, biogen, biogenesis, biogenetic law, biogenetics, biogenic, biogenic amine

Origin of biogen

First recorded in 1895–1900; bio- + -gen

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for biogen

Naturally, this does not exclude a very complicated chemical structure in the large plastidule or biogen as a single molecule.
The Wonders of Life|Ernst Haeckel
The explanation is thus carried back to the complicated constitution of biogen molecules in various living cells of the body.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2|Various

British Dictionary definitions for biogen

biogen

/ (ˈbaɪədʒən) /

noun

a hypothetical protein assumed to be the basis of the formation and functioning of body cells and tissues

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