D defs.my
Entry 1 sense Webster, 1913

bacilli

· IPA /bəˈsɪl.aɪ/
01 n. plural of bacillus; usually designating aerobic rod-shaped spore-producing bacteria; they often occur in chainlike formations.
  1. 1.
    plural of bacillus; usually designating aerobic rod-shaped spore-producing bacteria; they often occur in chainlike formations. See: bacillus
Syn. bacillus