Term used to designate the nonspreading growth of nonflagellated bacteria on agar media; also applied to somatic agglutination. SEE ALSO: O antigen. [Ger. without breath]
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(oґnə houkh) [Ger. “without breath†cf. Hauch] see O antigen, under antigen, and O colony, under colony. Symbol O.Medical dictionary. 2011.