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

Aspídium aculeàtum Bráunii Fronds thick, rigid, one to two feet long, spreading, lanceolate, tapering both ways, bipinnate.

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

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

For example, while the clustered leaves of the Honey-Locust are simply pinnate, that is, once pinnate, those on new shoots are bipinnate, or twice pinnate, as in Fig.

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

But they are usually strictly bipinnate and thereby give testimony as to their descent from species which bear such leaves throughout their life.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

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