bipinnate

American  

[bahy-pin-eyt] / 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

Etymology

Origin of bipinnate

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

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

Some species of the genus Acacia bear bipinnate leaves, while others have no leaves at all, but bear broadened and flattened petioles instead.

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

Pinnule, a secondary division of a bipinnate or tripinnate leaf, 66.

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

Fronds bipinnate, one to three feet high, widest near the middle.

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

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