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noun Physiology, Pathology.
  1. leukocytosis.
Related formsleu·co·cy·tot·ic [loo-koh-sahy-tot-ik] /ˌlu koʊ saɪˈtɒt ɪk/, adjective


or leu·co·cy·to·sis

noun Physiology, Pathology.
  1. an increase in the number of white blood cells in the blood.

Origin of leukocytosis

From New Latin, dating back to 1865–70; see origin at leukocyte, -osis
Related formsleu·ko·cy·tot·ic [loo-koh-sahy-tot-ik] /ˌlu koʊ saɪˈtɒt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for leucocytosis

Historical Examples

  • Just prior to the onset of an exacerbation the leucocytosis is low.

    Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 5


  • These three cases, then, had marked febrile reactions and leucocytosis.

    Benign Stupors

    August Hoch

  • The possibility of the three high temperatures with leucocytosis being due to intercurrent infections must be considered.

    Benign Stupors

    August Hoch

  • This is borne out by the exceptionally exhaustive hæmatological literature, and particularly by that of leucocytosis.

  • Very important conclusions on the interesting question of leucocytosis can be drawn from these observations.

British Dictionary definitions for leucocytosis


esp US leukocytosis

  1. a gross increase in the number of white blood cells in the blood, usually as a response to an infection
Derived Formsleucocytotic or esp US leukocytotic (ˌluːkəʊsaɪˈtɒtɪk), adjective
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

leucocytosis in Medicine


([object Object])
  1. Variant ofleukocytosis


n. pl. leu•ko•cy•to•ses (-sēz)
  1. An abnormally large increase in the number of white blood cells in the blood, often occurring during an acute infection or inflammation.
Related formsleu′ko•cy•totic (-tŏtĭk) adj.

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