• synonyms


[in-ter-grey-dey-shuh n]
See more synonyms for intergradation on Thesaurus.com
  1. the act or process of intergrading or the state of being intergraded.
  2. an evolutionary process by which different species of organisms tend to merge through a series of intermediate stages or grades.
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Origin of intergradation

First recorded in 1870–75; inter- + gradation
Related formsin·ter·gra·da·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for intergradation

Historical Examples

  • The specimen shows evidence of intergradation with excubitorides.

    Birds from Coahuila, Mexico

    Emil K. Urban

  • No evidence of intergradation with any other race was noted.

  • Intergradation is noted also in animals from Schreiber, Ontario.

  • The intergradation between cicognanii and richardsonii is gradual.

    American Weasels

    E. Raymond Hall

  • Intergradation with invicta is shown by specimens from southwestern Montana.

    American Weasels

    E. Raymond Hall