English Explanatory Dictionary

bacterium

English dictionary entry

Meanings

noun
  1. A single-celled organism with cell walls but no nucleus or organelles.

Pronunciation

/bækˈtɪəɹ.ɪəm/ En-us-bacterium.ogg

Word forms

bacterium bacteria bacteriums

Etymology

Etymology tree Ancient Greek βᾰκτηρῐ́ᾱ (băktērĭ́ā) Proto-Indo-European *-yósder. Ancient Greek -ῐος (-ĭos)? Ancient Greek -ῐον (-ĭon) Ancient Greek βακτήριον (baktḗrion)bor. New Latin bactēriumbor. English bacterium From New Latin bactērium, from Ancient Greek βακτήριον (baktḗrion, “small staff”), from βακτηρία (baktēría).

Synonyms

bacterium

Related words

bacillus -coccus

Derived words

agrobacterium archaebacterium archebacterium bacterial bactericidal bactericide bacteriologist bacteriology bacteroid betaproteobacterium blue-green bacterium cyanobacterium diplobacterium endobacterium enterobacterium epibacterium eubacterium green bacterium halobacterium Hansen’s bacterium heliobacterium iron bacterium macrobacterium megabacterium microbacterium mirror bacterium mycobacterium nanobacterium nitrobacterium phosphobacterium photobacterium phytobacterium probacterium purple sulfur bacterium rhizobacterium spirobacterium streptobacterium sulfur bacterium sulphur bacterium ultramicrobacterium urobacterium
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