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bipinnate

[bahy-pin-eyt]
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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

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British Dictionary definitions for bipinnate

bipinnate

adjective
  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

bipinnate

[bī-pĭnāt′]
  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.