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

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

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

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.

Remarks.—G. bursarius jugossicularis and G. bursarius industrius intergrade in the southern part of Meade County.

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

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.

The subspecies cahooni and compositus of the Brown-throated Wren seem to intergrade in the southern part of the State.

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