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bacillus Meaning, Definition & Usage

  1. noun aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
    B.
WordNet

Ba*cil"lus noun
Etymology
NL., for L. bacillum. See Bacillarle.
Wordforms
plural Bacilli
Definitions
  1. (Biol.) A variety of bacterium; a microscopic, rod-shaped vegetable organism.

Webster 1913