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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 ?
This year, structures of all of the test systems, which included the complexities of polymorphs, salts and hydrates, were generated by one or more methods.
Our group has already performed a theoretical search finding two possible HP-HT thermodynamic stable polymorphs.
Nylon-6 is known to have two major polymorphs or crystalline forms namely the y-crysiallinc form and the y-form.
On 7th day sections showed mild inflammatory reaction with more polymorphs and mononuclear cells in the lamina propria and submucosa and hypertrophy of tunica advantitia in group I (Fig.
It is very helpful to know if a drug API has known polymorphs that could result in degradation of products or affect product potency and stability.
PCC pigments of calcite and aragonite crystalline polymorphs having rhombo-hedral, orthorhombic, and scalenohedral habits were selected for the study.
Cerebro spinal fluid (CSF) examination showed proteins of 158 mg/dl, sugar of 65 mg/dl, 70 cells/ hpf (20% polymorphs and 80% lymphocytes).
Phenotyping by isoelectric focusing can detect known and unknown polymorphs, but only in cases in which the amino acid substitution leads to a change in the protein's isoelectric point.
However, after corrections were made using blood sample cell levels the CSF showed evidence of aseptic meningitis with elevated polymorphs (5 x [10.
Key words: derivative lattice analysis; lattice-matching techniques; matrix strategy; polymorph characterization; pseudo-polymorphs; reduced cell strategy.
In most cases, the shells are constructed of two or more superimposed layers with different microstructures, which may even be composed of different calcium carbonate polymorphs (i.
Explanation: For the purposes of this clause, salts, esters, ethers, polymorphs, metabolites, pure form, particle size, isomers, mixtures of isomers, complexes, combinations and other derivatives of known substance shall be considered to be the same substance, unless they differ significantly in properties with regard to efficacy.