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intergrade

American  
[in-ter-grayd, in-ter-grayd] / ˈɪn tərˌgreɪd, ˌɪn tərˈgreɪd /

noun

  1. an intermediate grade, form, stage, etc.


verb (used without object)

intergraded, intergrading
  1. to merge gradually, one into another, as different species through evolution.

intergrade British  

verb

  1. (intr) (esp of biological species, etc) to merge one into another

"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

noun

  1. an intermediate stage or form

"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

Other Word Forms


Etymology

Origin of intergrade

First recorded in 1870–75; inter- + grade


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

When more specimens are obtained from the front range of the Sierra Madre Oriental, at lower altitudes, the manner in which these two subspecies intergrade with one another will be better understood.

From Speciation and Evolution of the Pygmy Mice, Genus Baiomys by Robert L. Packard

Of the Black Phoebe, the two subspecies semiatra and nigricans intergrade in Coahuila.

From Birds from Coahuila, Mexico by Emil K. Urban

Larger and darker than S. v. shumaginensis; the two intergrade near the base of the Kenai Peninsula.

From Speciation of the Wandering Shrew by James S. Findley

I find these kinds to intergrade continuously one with the next in the manner described and conclude that all are of a single species.

From Speciation of the Wandering Shrew by James S. Findley

If Geomys lutescens major Davis is correctly judged to intergrade with Geomys bursarius majusculus Swenk, the name for the full species will be Geomys bursarius because bursarius is the oldest name among those available.

From Subspeciation in Pocket Gophers of Kansas, [KU. Vol. 1 No. 11] by E. Raymond (Eugene Raymond) Hall

Sierra Nevada of California, north at least to El Dorado County, intergrading northerly with S. v. vagrans.

From Speciation of the Wandering Shrew by James S. Findley

It inhabits the Barren Grounds from Hudson Bay north-westward to the Mackenzie, and is represented by related and intergrading forms nearly throughout Alaska, and southward in the Rocky Mountains to the northern United States.

From A Journey from Prince of Wales's Fort in Hudson's Bay to the Northern Ocean in the Years 1769, 1770, 1771, 1772 New Edition with Introduction, Notes, and Illustrations by J. B. Tyrrell

Passing by many interesting members of the psychological series of intergrading forms, we reach the familiar animals like the cat and dog and horse which display what is called intelligence.

From The Doctrine of Evolution Its Basis and Its Scope by Henry Edward Crampton

No. 31633 shows no sign of intergrading with J. p. phaeonotus to the south.

From Birds from Coahuila, Mexico by Emil K. Urban

Some of the animals are practically indistinguishable in color and there are intergrading cranial characters in the nasals, zygomatic arches and tympanic bullae.

From The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. by Stephen D. Durrant

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