Lymphocytosis

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An increase in the number or proportion of lymphocytes in the blood. countable, uncountable

    "In disease of the spleen, especially Banti's disease or fibro-adenia of the spleen, the increase of leukocytes is absent or slight, with no relative lymphocytosis."

  2. 2
    an abnormal increase in the number of lymphocytes in the circulating blood wordnet

Example

More examples

"In disease of the spleen, especially Banti's disease or fibro-adenia of the spleen, the increase of leukocytes is absent or slight, with no relative lymphocytosis."

Etymology

From lymphocyte + -osis.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.