Adverb
microbially (not comparable)
(sciences) By means of or in relation to microbes
The corrosion was microbially induced.
The clathrates in these deep deposits are thought to have formed in situ from the microbially produced methane, since the δ 13 C values of clathrate and surrounding dissolved methane are similar. Source: Internet
Some deposits have characteristics intermediate between the microbially and thermally sourced types and are considered to be formed from a mixture of the two. Source: Internet