Bible Dictionaries
Spirillum

Webster's Dictionary

(n.) A genus of common motile microorganisms (Spirobacteria) having the form of spiral-shaped filaments. One species is said to be the cause of relapsing fever.

Bibliography Information
Webster, Noah. Entry for 'Spirillum'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/spirillum.html. 1828.