intergrade

American  

[in-ter-greyd, in-ter-greyd] / 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

Etymology

Origin of intergrade

First recorded in 1870–75; inter- + grade

Example Sentences

Remarks.—One specimen from Kanab is an intergrade between trumbullensis and absonus.

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

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 Durrant, Stephen D.

In this area T. t. taxus and T. t. fippsi may intergrade.

From Mammals of the Grand Mesa, Colorado by Anderson, Sydney

The specimen in no way represents an intergrade between C. l. dunni and l. lineatus.

From A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) by Wellman, John

P. r. flammeus and mexicanus seem to intergrade in northern Coahuila.

From Birds from Coahuila, Mexico by Urban, Emil K.