from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various filamentous, mostly anaerobic microorganisms of the genus Actinomyces, which includes the causative agents of actinomycosis.

from The Century Dictionary and Cyclopedia

  • n. The ray-fungus: so called from the rosettes of club-shaped structures in which it presents itself. The disease actinomycosis is caused by the presence of this fungus.
  • n. [capitalized] [NL. (Harz, 1877).] A genus of fungi of doubtful relationship. The type is A. bovis, the ray-fungus. See actinomyces, 1.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. soil-inhabiting saprophytes and disease-producing plant and animal parasites


New Latin Actīnomycēs, genus name : actino- + Greek mukēs, fungus.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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