bipinnate

[bahy-pin-eyt]

adjective

Botany.

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

bipinnate

/ baɪˈpɪnˌeɪt /

adjective

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

bipinnate

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.

Other Word Forms

• bipinnately adverb

Word History and Origins

Origin of bipinnate¹

From the New Latin word bipinnātus, dating back to 1785–95; 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.

Read more on New York Times

Pod flat, oblong, often falcate, few–several-seeded.—Low perennial herbs, or woody at base, punctate with black glands, with bipinnate leaves, and naked racemes of yellow flowers opposite the leaves or terminal.

Read more on Project Gutenberg

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.

Read more on Project Gutenberg

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.

Read more on Project Gutenberg

The plant produces a slender, erect, hollow stem rising 1 to 2 ft. in height, with bipinnate leaves and small flowers in pink or whitish umbels.

Read more on Project Gutenberg