bipinnate

American  

[bahy-pin-ayt] / baɪˈpɪn eɪt /

adjective

Botany.

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

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bipinnate British  

/ baɪˈpɪnˌeɪt /

adjective

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

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bipinnate Scientific  

/ bī-pĭn′āt′ /

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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Other Word Forms

• bipinnately
  adverb

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Etymology

Origin of bipinnate

From the New Latin word bipinnātus, dating back to 1785–95; see bi- ¹, pinnate

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Example Sentences

See Examples For:

bipinnate

“There were two options: You move the house, or the tree dies,” says Duprat, 69, on a temperate afternoon this past August, standing beneath its delicate bipinnate leaves.

From New York Times ● Mar. 22, 2024

Fronds one to three feet high, oblong-lanceolate, bipinnate, the upper pinnæ lanceolate, the lower triangular with spinulose teeth.

From The Fern Lover's Companion A Guide for the Northeastern States and Canada by George Henry Tilton

Pinna, a primary division with its leaflets of a bipinnate or tripinnate leaf.

From The Elements of Botany For Beginners and For Schools by Asa Gray

ANGELICA, a genus of plants of the natural order Umbelliferae, represented in Britain by one species, A. sylvestris, a tall perennial herb with large bipinnate leaves and large compound umbels of white or purple flowers.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 by Various

The large pinnate or rarely bipinnate leaves give the Cycads a superficial resemblance in habit to Palms.

From Darwin and Modern Science by A. C. (Albert Charles) Seward

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