pol·y·mor·phism

(pŏl′ē-môr′fĭz′əm)

1. Biology The occurrence of more than one form, as several alleles of a particular gene or winged and wingless forms of the same species.

2. Chemistry Crystallization of a compound in at least two distinct forms. Also called pleomorphism.

pol′y·mor′phic, pol′y·mor′phous adj.

pol′y·mor′phous·ly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

polymorphism

(ˌpɒlɪˈmɔːfɪzəm)

1. (Biology) biology

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

b. the occurrence of more than one form in the individual polyps of a coelenterate colony

2. (Chemistry) the existence or formation of different types of crystal of the same chemical compound

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

pol•y•mor•phism

(ˌpɒl iˈmɔr fɪz əm)

n.

1. the state or condition of being polymorphous.

a. genetic variation that produces differing characteristics in individuals of the same population or species.

b. the occurrence of different castes or types within the same sex, as in social ants.

c. pleomorphism.

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

[1830–40]

pol`y•mor′phic, adj.

pol·y·mor·phism

(pŏl′ē-môr′fĭz′əm)

1. The existence of two or more different forms in an adult organism of the same species, as of an insect. 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.

2. 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® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

polymorphism

the occurrence of several forms or colors in one species of insect. — polymorphous, adj.

polymorphism

noun

Biology. The quality of being made of many different elements, forms, kinds, or individuals:

diverseness, diversification, diversity, heterogeneity, heterogeneousness, miscellaneousness, multifariousness, multiformity, multiplicity, variegation, variety, variousness.

Translations

mnohotvarost

Polymorphie

πολυμορφισμός

polymorphisme

polimorfizamvišeobličje

polimorfismo

同質異像多形多形性多態

polymorfisme

polimorfismo

polymorphism

[ˌpɒlɪˈmɔːfɪzəm] N → polimorfismo m

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

polymorphism

n → Polymorphismus m

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

Mentioned in

References in periodicals archive

Kamataki, "Genetic polymorphism of drug metabolizing enzymes: new mutations in CYP2D6 and CYP2A6 genes in Japanese," Pharmaceutical Research, vol.

Cytochrome P450 metabolism of betel quid-derived compounds: implications for the development of prevention strategies for oral and pharyngeal cancers

The research entitled "The Effect of CYP2C19 and Non-Genetic Factors on Clopidogrel Responsiveness and Its Impact on Cardiovascular Outcomes in Qatar" aimed to determine the prevalence of CYP2C19, (a liver enzyme) genetic polymorphism in Arabs and to examine the association between the genetic and non-genetic factors and clopidogrel responsiveness in terms of the clinical outcomes.

QU student presents results of novel observational study

Similar to other infectious pathogens, genetic polymorphism in the TLR4 gene reduces inflammation, causing less damage and persistent infection (27-29).

Toll-like receptor 2 and 4 polymorphisms associated with Helicobacter pylori susceptibility and gastric cancer

CYP3A4*1G genetic polymorphism has been found to decrease fentanyl consumption and sufentanil consumption for postoperative pain control.[15] In addition, patients with CYP3A4*1G genetic polymorphism consumed significantly lower amount of sufentanil in general anesthesia during lung resection than the wild-type group.

Impact of CYP3A4*1G Polymorphism on Fentanyl Analgesia Assessed by Analgesia Nociception Index in Chinese Patients Undergoing Hysteroscopy

In different countries, genetic polymorphism has been investigated using TLR4 Asp299Gly and Thr399Ile with DNA isolation and guanine-thymine (GT) iterations in the TLR2 intron 2 region.

TLR4 Asp299Gly and Thr399Ile and TLR2 intron 2 microsatellite gene polymorphism in patients with acute biliary pancreatitis: Does it cause the disease?

The presence of two or more genetically identified alternative phenotypes in a population based one various alleles is defined as "genetic polymorphism." That thousands of candidate polymorphic genes exist within the human genome and that such differences in the genome can affect the individual's predisposition for cancer, lead many researchers to explore this area (17).

Investigation of GLUTI, HIF1[alpha] and TBX21 Gene Polymorphisms in Laryngeal Cancer

Genetic polymorphism in cytokine genes can alter cytokine production, and some of these polymorphisms are single base changes.

Investigation of Interleukin 1 Alpha Gene Promoter Polymorphism in hemodialysis patients with arteriovenous fistula thrombosis

(10) Recently, in a study by Hernesniemi et al, (13) it was shown that the interaction between hypertension and GG homozygote genotype of IL18 -137G/C genetic polymorphism significantly increased the risk of sudden cardiac death and CAD development.

Evaluation of the Role of -137G/C Single Nucleotide Polymorphism (rs187238) and Gene Expression Levels of the IL-18 in Patients with Coronary Artery Disease

Keywords: [beta]-lactoglobulin; genetic polymorphism; Pramenka breed.

Short Communication - POLYMORPHISM OF [beta]-LACTOGLOBULIN IN PRAMENKA SHEEP BREED IN BOSNIA AND HERZEGOVINA

American mink, DNA sequencing, Gen structure, Genetic polymorphism, Growth hormone gene, SNP.

Characteristics of Structure and Nucleotide Polymorphism of the American Mink (Neovison vison) Growth Hormone Gene

(14) revealed that VKORC 1 genetic polymorphism was quite common among Chinese and Malaysian people, but it had a low ratio among Indian people.

Evaluation of the VKORC 1 and CYP2C9 Gene Polymorphisms and Their Effects on the Emergency Complications in the Patients Using Warfarin

Noun	1.	polymorphism - (genetics) the genetic variation within a population that natural selection can operate on genetic science, genetics - the branch of biology that studies heredity and variation in organisms organic phenomenon - (biology) a natural phenomenon involving living plants and animals single nucleotide polymorphism, SNP - (genetics) genetic variation in a DNA sequence that occurs when a single nucleotide in a genome is altered; SNPs are usually considered to be point mutations that have been evolutionarily successful enough to recur in a significant proportion of the population of a species
	2.	polymorphism - (chemistry) the existence of different kinds of crystal of the same chemical compound pleomorphism 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
	3.	polymorphism - (biology) the existence of two or more forms of individuals within the same animal species (independent of sex differences) biological science, biology - the science that studies living organisms organic phenomenon - (biology) a natural phenomenon involving living plants and animals dimorphism - (biology) the existence of two forms of individual within the same animal species (independent of sex differences)