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

“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

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 Gray, Asa

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 Tilton, George Henry

Nearly 300 species are Australian or Polynesian, and have terete or vertically compressed leaf stalks, instead of the bipinnate leaves of the much fewer species of America, Africa, etc.

From Webster's Unabridged Dictionary by Webster, Noah

Stem and branches pinnate or bipinnate, the pinnae and pinnules alternate.

From 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. — Volume 1 by MacGillivray, John