streptothrix

noun

strep·​to·​thrix ˈstrep-tə-ˌthriks 

1

capitalized in some classifications : a genus of higher bacteria that somewhat resemble molds, have branched filaments, and comprise forms now usually placed in Actinomyces or in Leptothrix

2

plural streptothrices ˌstrep-tə-ˈthrī-ˌsēz  : any bacterium of the genus Streptothrix