diplobacillus

noun

dip·​lo·​ba·​cil·​lus ˌdip-lō-bə-ˈsil-əs 

plural diplobacilli

-ˌī also -ē

: a pair of rod-shaped bacilli that remain joined together end-to-end following division

diplobacillary

-ˈbas-ə-ˌler-ē  -bə-ˈsil-ə-rē 

adjective