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Any of numerous insects of the order or suborder Blattaria, having oval flat bodies and laying eggs in hardened cases, and including several species that are common household pests.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
cockroachEntomology A largely nocturnal insect, Order Blattaria; most common US roaches are Periplaneta americana, Blattella germanica and B orientalis, and are of medical interest as potential vectors for bacteria–eg, Salmonella spp; other organisms cultured from cockroaches include Shigella, Proteus, Mycobacterium spp, E coli, Klebsiella pneumoniae and Pseudomonas aeruginosa
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
cockroachthe common name for members of the insect order Dictyoptera.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005