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

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 Durrant, Stephen D.

The specimen from Jaumave is clearly M. f. frenata, but the other from northwest of Altamira has many characters of the subspecies M. f. tropicalis and is an intergrade between the two subspecies.

From The Recent Mammals of Tamaulipas, Mexico by Alvarez, Ticul

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 Hall, E. Raymond (Eugene Raymond)

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

In color, some specimens seem to intergrade toward aureus.

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