biogenic

[bahy-oh-jen-ik]
adjective
1.
resulting from the activity of living organisms, as fermentation.
2.
necessary for the life process, as food and water.

Origin:
1875–80; bio- + -genic

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World English Dictionary
biogenic (ˌbaɪəʊˈdʒɛnɪk)
 
adj
produced or originating from a living organism

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

biogenic
1904, with ref. to Haeckel's recapitulation theory; 1913 as "produced by living organisms," from bio- + genic "produced by" (see genus).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Plants will respond by giving off more aromatic biogenic volatile organic compounds, the study concludes.
The first is to look for signs of life on other planets, perhaps using biogenic markers in their atmospheres.
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