Archaea vs. Bacteria

Archaea

Archaea ( (listen) ar-KEE-ə; singular archaeon ) constitute a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes.

Bacterianoun

(US) A type, species, or strain of bacterium.

Bacterianoun

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Bacterianoun

A derisive term for a lowlife or a slob (could be treated as plural or singular).

Bacterianoun

An oval bacterium, as distinguished from a spherical coccus or rod-shaped bacillus.

Bacteria

See Bacterium.

Bacterianoun

(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants

Bacteria

Bacteria ( (listen); common noun bacteria, singular bacterium) are a type of biological cell. They constitute a large domain of prokaryotic microorganisms.