speciation

[ spee-shee-ey-shuhn, -see-ey- ]

/ ˌspi ʃiˈeɪ ʃən, -siˈeɪ- /

SEE SYNONYMS FOR speciation ON THESAURUS.COM

noun Biology.

the formation of new species as a result of geographic, physiological, anatomical, or behavioral factors that prevent previously interbreeding populations from breeding with each other.

Origin of speciation

First recorded in 1895–1900; speci(es) + -ation

Words nearby speciation

special team, special term, special theory of relativity, specialty, speciate, speciation, specie, specie point, species, speciesism, species-specific

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

Example sentences from the Web for speciation

The process of speciation within insular populations has been discussed by many authors.
The Avifauna of Micronesia, Volume 3|Rollin H. Baker
Isolation of small populations is probably the most influential factor in the process of speciation in insular organisms.
The Avifauna of Micronesia, Volume 3|Rollin H. Baker
Additional remarks on the distribution of this species are in the section on Zoogeography and Speciation.
Systematics of Megachiropteran Bats in the Solomon Islands|Carleton J. Phillips
In fact, isolation is a most important factor in speciation of insular populations (Baker, 1951:55).
Systematics of Megachiropteran Bats in the Solomon Islands|Carleton J. Phillips

Natural selection plus geographical and ecological isolation has undoubtedly been operative in speciation and in subspeciation.
Speciation in the Kangaroo Rat, Dipodomys ordii|Henry W. Setzer

British Dictionary definitions for speciation

speciation

/ (ˌspiːʃɪˈeɪʃən) /

noun

the evolutionary development of a biological species, as by geographical isolation of a group of individuals from the main stock

Word Origin for speciation

C20: from species + -ation

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 speciation

speciation

[ spē′shē-ā′shən, -sē- ]

n.

The evolutionary formation of new biological species, usually by the division of a single species into two or more genetically distinct ones.

Scientific definitions for speciation

speciation

[ spē′shē-ā′shən ]

The formation of new biological species by the development or branching of one species into two or more genetically distinct ones. The divergence of species is thought to result primarily from the geographic isolation of a population, especially when confronted with environmental conditions that vary from those experienced by the rest of the species, and from the random change in the frequency of certain alleles (known as genetic drift). According to the theory of evolution, all life on Earth has resulted from the speciation of earlier organisms. See also adaptive radiation.

单词	speciation
释义	speciation [ spee-shee-ey-shuhn, -see-ey- ] / ˌspi ʃiˈeɪ ʃən, -siˈeɪ- / SEE SYNONYMS FOR speciation ON THESAURUS.COM noun Biology. the formation of new species as a result of geographic, physiological, anatomical, or behavioral factors that prevent previously interbreeding populations from breeding with each other. Origin of speciation First recorded in 1895–1900; speci(es) + -ation Words nearby speciation special team, special term, special theory of relativity, specialty, speciate, speciation, specie, specie point, species, speciesism, species-specific Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for speciation The process of speciation within insular populations has been discussed by many authors. The Avifauna of Micronesia, Volume 3\|Rollin H. Baker Isolation of small populations is probably the most influential factor in the process of speciation in insular organisms. The Avifauna of Micronesia, Volume 3\|Rollin H. Baker Additional remarks on the distribution of this species are in the section on Zoogeography and Speciation. Systematics of Megachiropteran Bats in the Solomon Islands\|Carleton J. Phillips In fact, isolation is a most important factor in speciation of insular populations (Baker, 1951:55). Systematics of Megachiropteran Bats in the Solomon Islands\|Carleton J. Phillips Natural selection plus geographical and ecological isolation has undoubtedly been operative in speciation and in subspeciation. Speciation in the Kangaroo Rat, Dipodomys ordii\|Henry W. Setzer British Dictionary definitions for speciation speciation / (ˌspiːʃɪˈeɪʃən) / noun the evolutionary development of a biological species, as by geographical isolation of a group of individuals from the main stock Word Origin for speciation C20: from species + -ation 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 speciation convergence, parallel evolution Medical definitions for speciation speciation [ spē′shē-ā′shən, -sē- ] n. The evolutionary formation of new biological species, usually by the division of a single species into two or more genetically distinct ones. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for speciation speciation [ spē′shē-ā′shən ] The formation of new biological species by the development or branching of one species into two or more genetically distinct ones. The divergence of species is thought to result primarily from the geographic isolation of a population, especially when confronted with environmental conditions that vary from those experienced by the rest of the species, and from the random change in the frequency of certain alleles (known as genetic drift). According to the theory of evolution, all life on Earth has resulted from the speciation of earlier organisms. See also adaptive radiation. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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speciation

noun Biology.

Origin of speciation

Words nearby speciation

Example sentences from the Web for speciation

British Dictionary definitions for speciation

noun

Word Origin for speciation

Words related to speciation

Medical definitions for speciation

n.

Scientific definitions for speciation