noun, plural bac·te·roi·des.
any of several rod-shaped, anaerobic bacteria of the genus Bacteroides, occurring in the alimentary and genitourinary tracts of humans and other mammals, certain species of which are pathogenic.
Origin of bacteroides
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for bacteroides
Historical Examples of bacteroides
Cultivation and classification of "bacteroides," "symbionts," or "rickettsiae" of Blattella germanica.The Biotic Associations of Cockroaches
Louis M. Roth
A genus of gram-negative, anaerobic, rod-shaped, non-spore-forming bacteria that occur in the respiratory, intestinal, and urogenital tracts of warm-blooded animals and include some pathogenic species.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.