crab louse(redirected from Phthirus infestation)
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A parasitic louse (Phthirus pubis) that infests the pubic region and causes severe itching. Also called pubic louse.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Phthirus inguinalis and Phthirus pubis; the louse that infests the pubic region and other hairy areas of the body. See: pediculosis
See also: louse
Medical Dictionary, © 2009 Farlex and Partners
crab louseThe human ectoparasite Pediculus pubis (Phthirus pubis ), which is usually confined to the genital area, especially in the pubic hair, and is transmitted during sexual intercourse.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005