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noun
A bacterium that is considerably smaller than typical bacterial cells and is 0.2 to 0.3 micrometers (200-300 nm) in diameter.
Definition source: English Wiktionary via Wiktextract
Topics: biology, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *h2el- Latin ūls Proto-Indo-European *-teros? Latin -ter Old Latin -ād Latin -ā Latin ultrābor. English ultra- English micro- Ancient Greek βακτηρία (baktēría) Proto-Indo-European *-yósder. Ancient Greek -ῐος (-ĭos)? Ancient Greek -ιον (-ion) Ancient Greek βακτήριον (baktḗrion)bor. New Latin bactēriumbor. English bacterium English ultramicrobacterium From ultra- + micro- + bacterium.
