[ mī′krō-kŏ-kā′sē-ē ]
A family of aerobic or facultatively anaerobic bacteria containing gram-positive spherical cells that occur singly or in pairs, tetrads, irregular masses, or chains, and that include free-living, saprophytic, parasitic, and pathogenic species.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.