| leucocyte | Generic term for a white blood cell. The family consists of polymorphonuclear neutrophil (polymorphs), lymphocyte, eosinophil, basophil and each functions differently. (16 Dec 1997) |
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| polymorphonuclear leucocyte | Mammalian blood leucocyte (granulocyte) of myeloid series in distinction to mononuclear leucocytes: See: neutrophil, eosinophil, basophil. (18 Nov 1997) |
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| lazy leucocyte syndrome | <haematology, syndrome> A rare human complaint in which neutrophils display poor locomotion towards sites of infection. (18 Nov 1997) |