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Related to Polymorphonuclear leucocyte: Polymorphonuclear cells


1. Biology One of the forms of a polymorphic organism.
2. Chemistry A specific crystalline form of a compound that can crystallize in different forms.
3. Immunology A polymorphonuclear leukocyte, especially a neutrophil.


1. (Biology) a species of animal or plant that exhibits polymorphism
2. (Chemistry) any of the crystalline forms of a chemical compound that exhibits polymorphism
3. (Physiology) Also called: polymorphonuclear leucocyte any of a group of white blood cells that have lobed nuclei and granular cytoplasm and function as phagocytes; they include neutrophils, basophils, and eosinophils
[C19: from Greek polumorphos having many forms]


(ˈpɒl iˌmɔrf)

a. an organism that exists in different forms.
b. one of the forms.
2. any of the crystal forms assumed by a substance that exhibits polymorphism.
[1820–30; < Greek polýmorphos; see poly-, -morph]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polymorph - an organism that can assume more than one adult form as in the castes of ants or termites
organism, being - a living thing that has (or can develop) the ability to act or function independently
References in periodicals archive ?
gender socioeconomic status culture of ascitic fluid polymorphonuclear leucocyte (PMN) count (less than 250/mm3 and greater than 250/mm3) and spontaneous bacterial peritonitis.
However, most of the investigation of this hypothesis has focused on lymphocyte function(10)(11)(12), with less attention being devoted to the polymorphonuclear leucocyte, despite its primary role in the defence against infection.
Urine cytology showed the presence of epithelial cells 10-15/hpf, polymorphonuclear leucocytes more than 12/hpf, and a background of RBCs in the smear.
Histopathological evaluation showed plasma cell and lymphocyte-predominant glial tissues and granulation signs accompanied by myofibroblast proliferation (histiocytes and polymorphonuclear leucocytes were also seen).
However, polymorphonuclear leucocytes and vasculitis were seen in 21 (95%) and 16 (73%) patients, respectively.
This sequence of events can be rapid, especially in an ischaemic limb and in the setting of various poorly characterized immunological disturbances involving polymorphonuclear leucocytes.
The effects of purified streptolysin S (SLS) produced by Streptococcus pyogenes Group A on polymorphonuclear leucocytes (PML) was investigated.
For prostate inflammation, > 10 polymorphonuclear leucocytes (PMNL) per high-power field (400X) is considered diagnostic.