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Related to Pleiomorphic: Pleomorphic adenoma, pleomorphic xanthoastrocytoma, pleomorphic lipoma


1. Chemistry See polymorphism.
2. Biology The occurrence of two or more distinct forms, as of an organism during its life cycle or of cells of a certain type.

ple′o·mor′phic adj.


(ˌpliːəˈmɔːˌfɪzəm) or


1. (Biology) the occurrence of more than one different form in the life cycle of a plant or animal
2. (Chemistry) the occurrence of more than one different form of crystal of one chemical compound; polymorphism
ˌpleoˈmorphic adj


(ˌpli əˈmɔr fɪz əm)

1. the occurrence of two or more forms in the life cycle of an organism.
2. the ability of a microorganism to change shape under varying conditions.
ple`o•mor′phic, adj.

pleomorphism, pleomorphy

the existence of a plant or animal in two or more distinct forms during a life cycle. Also called polymorphism.pleomorphic, pleomorphous, adj.
See also: Biology
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pleomorphism - (chemistry) the existence of different kinds of crystal of the same chemical compound
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
chemical phenomenon - any natural phenomenon involving chemistry (as changes to atoms or molecules)
dimorphism - (chemistry) the property of certain substances that enables them to exist in two distinct crystalline forms
2.pleomorphism - (biology) the appearance of two or more distinctly different forms in the life cycle of some organisms
biological science, biology - the science that studies living organisms
organic phenomenon - (biology) a natural phenomenon involving living plants and animals


n. pleomorfismo, cualidad de asumir o tener formas diferentes.
References in periodicals archive ?
The culture results from the aerobic periocular fluid revealed many pleiomorphic gram-negative rods resembling Avibacterium gallinarum (formerly Pasteurella gallinarum), and many coagulase-negative Staphylococcus species, which were later identified as Staphylococcus pasteuri by DNA sequencing.
Typically, plant [gamma]-Tubulin is a pleiomorphic entity that moves in a cell-cycle specific manner to different locations where it nucleates the microtubule systems that drive cell division and morphogenesis (Brown & Lemmon, 2007).
Owing to its highly pleiomorphic and dynamic nature that spans the spectrum from a primary electrical disturbance to an arrhythmia that develops in response to electrical, structural, and functional remodeling in response to a diverse number of cardiovascular insults or stressors (9), AF in older persons generally does not occur in isolation but is frequently accompanied by other age-related cardiovascular conditions (hypertension, coronary artery disease, diabetes, and chronic heart failure (CHF)), pulmonary diseases and chronic or even preterminal illnesses (9).