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[puh-dik-yuh-loh-sis] /pəˌdɪk yəˈloʊ sɪs/
noun, Pathology.
the state of being infested with lice.
Origin of pediculosis
1885-90; < Latin pēdicul(us) louse (see pedicular) + -osis
Related forms
[puh-dik-yuh-luh s] /pəˈdɪk yə ləs/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for pediculosis
Historical Examples
  • Is there any difficulty in the diagnosis of pediculosis capitis?

    Essentials of Diseases of the Skin

    Henry Weightman Stelwagon
  • Lice infestation and its effects are known medically as pediculosis.

    Handbook of Medical Entomology William Albert Riley
  • pediculosis: a state of lousiness, or the abnormal condition caused by the multiplication of lice on the body: sec phthiriasis.

  • Pustular eruptions upon the scalp, especially posteriorly, should always arouse a suspicion of pediculosis.

    Essentials of Diseases of the Skin

    Henry Weightman Stelwagon
  • The possibility of the pediculosis being secondary to eczema must not be forgotten.

    Essentials of Diseases of the Skin

    Henry Weightman Stelwagon
  • pediculosis pubis is a condition due to the presence of the pediculus pubis, or crab-louse.

    Essentials of Diseases of the Skin

    Henry Weightman Stelwagon
  • Similar abscesses are met with on the scalp in association with eczema, impetigo, and pediculosis.

    Manual of Surgery Alexis Thomson and Alexander Miles
  • Two other "catching" diseases cause city schools a great deal of trouble,—trachoma and pediculosis (head lice).

    Civics and Health William H. Allen
British Dictionary definitions for pediculosis


(pathol) the state of being infested with lice
Derived Forms
pediculous (pɪˈdɪkjʊləs) adjective
Word Origin
C19: via New Latin from Latin pedīculus louse; see pedicular
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for pediculosis

"lice infestation," 1809, with -osis + pediculus, diminutive of pedis "a louse," said in some sources to be akin to pedere "to break wind" (see petard) on notion of "foul-smelling insect" [Watkins].

Online Etymology Dictionary, © 2010 Douglas Harper
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pediculosis in Medicine

pediculosis pe·dic·u·lo·sis (pə-dĭk'yə-lō'sĭs)
The state of being infested with lice.

pe·dic'u·lous (-ləs) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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