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 (ăk-tĭn′ō-mī′sēz, ăk′tə-nō-)
n. pl. actinomyces
Any of various rod-shaped or filamentous, chiefly anaerobic bacteria of the genus Actinomyces, commonly found in the mammalian oral cavity and including pathogenic species, such as the causative agents of actinomycosis.

[New Latin Actīnomycēs, genus name : actino- + Greek mukēs, fungus.]


a genus of bacteria that causes disease in humans and improves soil ecology


(ækˌtɪn oʊˈmaɪ siz, ˌæk tə noʊ-)

n., pl. -ces.
any of several filamentous, anaerobic bacteria of the genus Actinomyces, certain species of which are pathogenic.
[< New Latin (1877) = Greek aktino- actino- + mýkēs fungus]
ac•tin`o•my•ce′tal, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actinomyces - soil-inhabiting saprophytes and disease-producing plant and animal parasitesactinomyces - soil-inhabiting saprophytes and disease-producing plant and animal parasites
eubacteria, eubacterium, true bacteria - a large group of bacteria having rigid cell walls; motile types have flagella
genus Actinomyces - type genus of the family Actinomycetaceae
References in periodicals archive ?
Effect of Actinomyces pyogenes and gram-negative bacteria on the development of bovine pyometra.
Actinomyces pyogenes died within 84 days in the 1996 study and survived for 188 days in the 1997 study.
The microorganisms used were: (1) bacteria: Pasteurella haemolytica A1, Pasteurella multocida A:3, Staphylococcus aureus, Escherichia coli, Enterococcus faecalis (old nomenclature Streptococcus faecalis), Actinomyces pyogenes, Salmonella dublin, Bacillus thuringiensis, Klebsiella pneumoniae, Pseudomonas aeruginosa.