bipinnate

[bahy-pin-eyt]

adjective Botany.

pinnate, as a leaf, with the divisions also pinnate.

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. 2019

Examples from the Web for bipinnate

Historical Examples of bipinnate

In all botanical works the fronds are incorrectly said to be bipinnate.
An Elementary Text-book of the Microscope
John William Griffith
Pinnule, a secondary division of a bipinnate or tripinnate leaf, 66.
The Elements of Botany
Asa Gray
Pinna, a primary division with its leaflets of a bipinnate or tripinnate leaf.
The Elements of Botany
Asa Gray
Stem and branches pinnate or bipinnate, the pinnae and pinnules alternate.
Narrative Of The Voyage Of H.M.S. Rattlesnake, Commanded By The Late Captain Owen Stanley, R.N., F.R.S. Etc. During The Years 1846-1850. Including Discoveries And Surveys In New Guinea, The Louisiade Archipelago, Etc. To Which Is Added The Account Of Mr. E.B. Kennedy's Expedition For The Exploration Of The Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist To The Expedition. In Two Volumes. Volume 1.
John MacGillivray
Fronds smooth, two to ten inches long, lanceolate, bipinnate.
The Fern Lover's Companion
George Henry Tilton

British Dictionary definitions for bipinnate

bipinnate

adjective

(of pinnate leaves) having the leaflets themselves divided into smaller leaflets

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-pĭn′āt′]

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.