bipinnate

[bahy-pin-eyt]
adjective Botany.
pinnate, as a leaf, with the divisions also pinnate.

Origin:
1785–95; < Neo-Latin bipinnātus. See bi-1, pinnate

bipinnately, adverb
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World English Dictionary
bipinnate (baɪˈpɪnˌeɪt)
 
adj
(of pinnate leaves) having the leaflets themselves divided into smaller leaflets
 
bi'pinnately
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
bipinnate   (bī-pĭn'āt')  Pronunciation Key 


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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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
In bipinnate muscles this lateral pull is counterbalanced.
The leaves are alternately arranged along the stem and are bipinnate.
The leaves are alternate, bipinnate, and have petioles.
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