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Douglas Harper's Etymology Dictionary
archaebacteria

plural of archaebacterium (1977), from archaeo- + bacterium (see bacteria).

Wiktionary
archaebacteria

alt. (context biology English) (plural of archaebacterium English) n. (context biology English) (plural of archaebacterium English)

WordNet
archaebacteria

n. considered ancient life forms that evolved separately from bacteria and blue-green algae [syn: archaebacterium, archaeobacteria, archeobacteria]

Usage examples of "archaebacteria".

Woese called these organisms archaebacteria, later shortened to archaea.