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  1. leukocyte

    • IPA[ˈlo͞okəˌsīt]


    • n.
      a colorless cell that circulates in the blood and body fluids and is involved in counteracting foreign substances and disease; a white (blood) cell. There are several types, all amoeboid cells with a nucleus, including lymphocytes, granulocytes, monocytes, and macrophages.
    • noun: leucocyte, plural noun: leucocytes