• synonyms


adjective Botany.
  1. pinnate, as a leaf, with the divisions also pinnate.
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Origin of bipinnate

From the New Latin word bipinnātus, dating back to 1785–95. See bi-1, pinnate
Related formsbi·pin·nate·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for bipinnate

Historical Examples of bipinnate

British Dictionary definitions for bipinnate


  1. (of pinnate leaves) having the leaflets themselves divided into smaller leaflets
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Derived Formsbipinnately, adverb
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

bipinnate in Science


  1. Relating to compound leaves that grow opposite each other on a larger stem; twice-compound or twice-pinnate. Bipinnate leaves have a feathery appearance. The acacia, coffeetree, and silktree have bipinnate leaves.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.