abacterial

[ ey-bak-teer-ee-uh l ]
/ ˌeɪ bækˈtɪər i əl /

adjective

not caused by or free from the presence of bacteria.

Origin of abacterial

First recorded in 1930–35; a-6 + bacterial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019