polymorphism

[ pol-ee-mawr-fiz-uhm ]

/ ˌpɒl iˈmɔr fɪz əm /

SEE SYNONYMS FOR polymorphism ON THESAURUS.COM

noun

the state or condition of being polymorphous.

Crystallography. crystallization into two or more chemically identical but crystallographically distinct forms.

Biology. the existence of an organism in several form or color varieties.

Genetics. the presence of two or more distinct phenotypes in a population due to the expression of different alleles of a given gene, as human blood groups O, A, B, and AB.

Origin of polymorphism

First recorded in 1830–40; polymorph + -ism

OTHER WORDS FROM polymorphism

pol·y·mor·phis·tic, adjective

Words nearby polymorphism

polymerous, polymethyl methacrylate, polymorph, polymorphic function, polymorphic reticulosis, polymorphism, polymorphocellular, polymorphonuclear, polymorphonuclear leukocyte, polymorphous, polymorphous perverse

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for polymorphism

On these grounds I designate the phenomenon as polymorphism, although it may not yet have reached, as such, its sharpest limits.
Studies in the Theory of Descent (Volumes 1 and 2)|August Weismann
Polymorphism was first observed by Mitscherlich in the case of sodium phosphate, and later in the case of sulphur.
The Phase Rule and Its Applications|Alexander Findlay
It is chiefly amongst the microscopic species that polymorphism has been determined.
Fungi: Their Nature and Uses|Mordecai Cubitt Cooke
Here, then, is a colony in which the division of labour has reached a remarkable degree of polymorphism.
The Industries of Animals|Frdric Houssay

Spencer, Herbert, controversy with Weismann on polymorphism in insects, 125.
The Biological Problem of To-day|Oscar Hertwig

British Dictionary definitions for polymorphism

polymorphism

/ (ˌpɒlɪˈmɔːfɪzəm) /

noun

biology

the occurrence of more than one form of individual in a single species within an interbreeding population
the occurrence of more than one form in the individual polyps of a coelenterate colony

the existence or formation of different types of crystal of the same chemical compound

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for polymorphism

polymorphism

[ pŏl′ē-môr′fĭz′əm ]

n.

The occurrence of different forms, stages, or types in individual organisms or in organisms of the same species, independent of sexual variations.

Crystallization of a compound in at least two distinct forms.pleomorphism

Other words from polymorphism

pol′y•mor′phic null adj.

Scientific definitions for polymorphism

polymorphism

[ pŏl′ē-môr′fĭz′əm ]

The occurrence of more than one form, as several alleles of a particular gene or winged and wingless forms of the same species. In bees, the presence of queen, worker, and drone is an example of polymorphism. Differences between the sexes and between breeds of domesticated animals are not considered examples of polymorphism.

The crystallization of a compound in at least two distinct forms. Diamond and graphite, for example, are polymorphs of the element carbon. They both consist entirely of carbon but have different crystal structures and different physical properties.

单词	polymorphism
释义	polymorphism [ pol-ee-mawr-fiz-uhm ] / ˌpɒl iˈmɔr fɪz əm / SEE SYNONYMS FOR polymorphism ON THESAURUS.COM noun the state or condition of being polymorphous. Crystallography. crystallization into two or more chemically identical but crystallographically distinct forms. Biology. the existence of an organism in several form or color varieties. Genetics. the presence of two or more distinct phenotypes in a population due to the expression of different alleles of a given gene, as human blood groups O, A, B, and AB. Origin of polymorphism First recorded in 1830–40; polymorph + -ism OTHER WORDS FROM polymorphism pol·y·mor·phis·tic, adjective Words nearby polymorphism polymerous, polymethyl methacrylate, polymorph, polymorphic function, polymorphic reticulosis, polymorphism, polymorphocellular, polymorphonuclear, polymorphonuclear leukocyte, polymorphous, polymorphous perverse Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for polymorphism On these grounds I designate the phenomenon as polymorphism, although it may not yet have reached, as such, its sharpest limits. Studies in the Theory of Descent (Volumes 1 and 2)\|August Weismann Polymorphism was first observed by Mitscherlich in the case of sodium phosphate, and later in the case of sulphur. The Phase Rule and Its Applications\|Alexander Findlay It is chiefly amongst the microscopic species that polymorphism has been determined. Fungi: Their Nature and Uses\|Mordecai Cubitt Cooke Here, then, is a colony in which the division of labour has reached a remarkable degree of polymorphism. The Industries of Animals\|Frdric Houssay Spencer, Herbert, controversy with Weismann on polymorphism in insects, 125. The Biological Problem of To-day\|Oscar Hertwig British Dictionary definitions for polymorphism polymorphism / (ˌpɒlɪˈmɔːfɪzəm) / noun biology the occurrence of more than one form of individual in a single species within an interbreeding population the occurrence of more than one form in the individual polyps of a coelenterate colony the existence or formation of different types of crystal of the same chemical compound Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to polymorphism fluctuation, diversification, incongruity, discrepancy, heterogeneousness, variegation, array, modification, heterogeneity, potpourri, mixture, diversity, miscellany, variation, divergency, collection, assortment, mishmash, change, diverseness Medical definitions for polymorphism polymorphism [ pŏl′ē-môr′fĭz′əm ] n. The occurrence of different forms, stages, or types in individual organisms or in organisms of the same species, independent of sexual variations. Crystallization of a compound in at least two distinct forms.pleomorphism Other words from polymorphism pol′y•mor′phic null adj. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for polymorphism polymorphism [ pŏl′ē-môr′fĭz′əm ] The occurrence of more than one form, as several alleles of a particular gene or winged and wingless forms of the same species. In bees, the presence of queen, worker, and drone is an example of polymorphism. Differences between the sexes and between breeds of domesticated animals are not considered examples of polymorphism. The crystallization of a compound in at least two distinct forms. Diamond and graphite, for example, are polymorphs of the element carbon. They both consist entirely of carbon but have different crystal structures and different physical properties. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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polymorphism

noun

Origin of polymorphism

OTHER WORDS FROM polymorphism

Words nearby polymorphism

Example sentences from the Web for polymorphism

British Dictionary definitions for polymorphism

noun

Words related to polymorphism

Medical definitions for polymorphism

n.

Other words from polymorphism

Scientific definitions for polymorphism