English Etymology From di- + colpate. Adjective dicolpate (not comparable) (botany, palynology, of a pollen) Having two grooves, or colpi, on each grain. The pollen grains are dicolpate. Noun dicolpate (plural dicolpates) (botany, taxonomy) A plant with dicolpate (two-grooved) pollen. The dicolpates are grouped into clades.Wikiwand - on Seamless Wikipedia browsing. On steroids.