leucocyte

(lu'ko-sit) [G. leukos, white, -f kytos, cell I. white blood-corpuscle. 2. Specifically one the markedly ameboid cells found in the blood 1 the lymph or in pus or as wandering connectivi < ti ue cells in the ti ues of the body. The foUo-v ing are the varieties of leucocytes found in tl blood (white non-granular—small blood-corpuscles) uninuclear (mom nuclear) lymphocyte, coi taining a large nucleus and small cell-body; larj lymphocyte, containing a larger amount of cyb plasm; transitional leucocyte, containing a hors i shoe-shaped nucleus and occasionally fe basophil granules; large uninuclear (mononi clear) leucocyte with an oval excentric nuclei and a large amount of cytoplasm; granidarmyelocytes (occurring only in pathological coi ditions), large cells with a large oval, roun or slightly indented micleus with reticulate cytoplasm containing granules having a nei trophil, eosinophil (oxyphil), or basophil reactioi multinuclear (polynuclear, polymorphonuclear these contain a nucleus of irregular shape, several nuclei apparently connected only by 1 chromatin threads, and a finely granular eel body; the granules in the cytoplasm may neutrophil, eosinophil (oxyphil), or basophil, tl latter being also called mast-cells, al'pha 1., 01 which undergoes lysis during coagulation of tl blood, hy'aline 1., one of the large mon on cleated cells, resembling the large lymphocyte normally present in small numbers but i creased in certain pathological states, such malaria; the macrophag of Metchnikoff. lym; phoid 1., (i) monocyte; (2) myeloblast.