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

/ 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.

Derived Forms

• biˈpinˌnately, adverb

Other Words From

• bi·pinnate·ly adverb

Word History and Origins

Origin of bipinnate¹

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

Example Sentences

Traillæ, which has “very large bipinnate fronds, all the pinnules pinnatifid.”

From Project Gutenberg

In all botanical works the fronds are incorrectly said to be bipinnate.

From Project Gutenberg

The latter are compound, bipinnate (Fig. 7), and have fifty pairs of leaflets, which are linear and obtuse and of a grayish green.

From Project Gutenberg

Its leaves are bipinnate, with stalked, shining leaflets that are irregularly cut.

From Project Gutenberg

In the former, the leaves are very finely bipinnate, and the general aspect of the foliage is extremely feathery and graceful.

From Project Gutenberg