• synonyms


  1. formed into or having closely parallel, toothlike projections; comblike.
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Sometimes pec·ti·nat·ed [pek-tuh-ney-tid] /ˈpɛk təˌneɪ tɪd/.

Origin of pectinate

1785–95; < Latin pectinātus past participle of pectināre to comb, equivalent to pectin-, stem of pecten (see pecten) + -ātus -ate1
Related formspec·ti·nate·ly, adverbpec·ti·na·tion, nounsub·pec·ti·nate, adjectivesub·pec·ti·nat·ed, adjectivesub·pec·ti·na·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pectinate

Historical Examples

  • Pectinate: comb-shaped: with even branches like the teeth of a comb.

    Explanation of Terms Used in Entomology

    John. B. Smith

  • Pectinate ligament, to the rightof which is the angle of the chamber.F.

  • The rare C. echinatus has the pectinate groups of barren glumes even more prominent.


    H. Marshall Ward

  • The iris becomes attached to the pectinate ligament and to the endothelium of Descemet's membrane.



  • The end branchlets are acute and pectinate (pecten, a comb), or arranged like the teeth of a comb.

British Dictionary definitions for pectinate



  1. shaped like a combpectinate antennae
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Derived Formspectination, noun

Word Origin

C18: from Latin pectinātus combed; see pecten
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

pectinate in Medicine


  1. Having projections resembling the teeth of a comb; comblike.
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Related formspec′ti•nation n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.