Of, relating to, or caused by, microbes; microbial.(adjective)
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Use "microbian" in a sentence
"Everything, from mugwumpery to the meddler's itch, from corns to crime, is now traced to the pernicious activity of some microbian."
"Terroir of thin clays with a large capacity of exchange, and the good thing is also that the soil there as never been turned over by super-deep plowing (like many farmers did in the 60s '), which means that the multi-layer sub-soil complete with its minerals and complex microbian life has never been disturbed."