spirillum

noun
spi·​ril·​lum | \spī-ˈri-ləm \
plural spirilla\spī-​ˈri-​lə \

Definition of spirillum 

: any of a genus (Spirillum) of curved elongated motile bacteria having tufts of flagella at both poles broadly : a spiral filamentous bacterium (such as a spirochete)

First Known Use of spirillum

circa 1875, in the meaning defined above

History and Etymology for spirillum

New Latin, from diminutive of Latin spira coil

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The first known use of spirillum was circa 1875

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More Definitions for spirillum

spirillum

noun
spi·​ril·​lum | \spī-ˈril-əm \

Medical Definition of spirillum 

1 capitalized : a genus of gram-negative bacteria comprising elongated forms having tufts of flagella at both poles and usually living in stagnant water rich in organic matter — see rat-bite fever sense b

2 plural spirilla\-​ˈril-​ə \ : any bacterium of the genus Spirillum

More from Merriam-Webster on spirillum

Rhyming Dictionary: Words that rhyme with spirillum

Britannica.com: Encyclopedia article about spirillum

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