intergrade

American  

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

noun

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

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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

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noun

1. an intermediate stage or form

Other Word Forms

• intergradation
  noun
• intergradational
  adjective
• intergradient
  adjective

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Etymology

Origin of intergrade

First recorded in 1870–75; inter- + grade

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Example Sentences

See Examples For:

intergrade intergrading

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

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

They intergrade with trumbullensis in the size and shape of the zygomatic arches and tympanic bullae.

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

This subspecies consists of many highly variable local populations, and the marginal populations intergrade freely with adjacent races.

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

O. a. mccallii and suttoni probably intergrade along the eastern slope of the Sierra del Carmen.

From Birds from Coahuila, Mexico by Emil K. Urban

There the lower elevations west of the Wasatch and Uinta mountains are inhabited by S. v. vagrans, the higher elevations by obscurus and where the ranges of the two abut intergrading populations occur.

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

But I have never found intergrading color forms, and have not yet satisfied myself as to whether or not the two should be entitled to specific rank.

From Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. by George Francis Atkinson

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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