• WordNet 3.6
    • n eubacteria a large group of bacteria having rigid cell walls; motile types have flagella
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Century Dictionary and Cyclopedia
    • eubacteria An order of Schizomycetes, including, according to Migula, four families, the Coccaceæ, Bacteriaceæ, Spirillaceæ, and Chlamydobacteriaceæ.
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In science:

Actually, the highly conserved FtsZ, barring a few exceptions, is found across all eubacteria and archaea.
Magnetism, FeS colloids, and Origins of Life