grass bacillus


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Related to grass bacillus: hay bacillus
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Noun1.grass bacillus - a species of bacillus found in soil and decomposing organic mattergrass bacillus - a species of bacillus found in soil and decomposing organic matter; some strains produce antibiotics
B, bacillus - aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil