"biogenic" in the adjective sense
1. biogenic
produced by living organisms or biological processes
"fermentation is a biogenic process"
2. biogenic
essential for maintaining the fundamental life processes
"sleep and food and water are among the biogenic needs of the organism"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License