tripinnate

Often tri·pin·nat·ed

[trahy-pin-eyt]

adjective

Botany.

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

tripinnate

/ -eɪt, traɪˈpɪnɪt /

adjective

1. (of a bipinnate leaf) having the pinnules themselves pinnate

Other Word Forms

• tripinnately adverb

Word History and Origins

Origin of tripinnate¹

First recorded in 1750–60; tri- + pinnate

Example Sentences

Pinna, a primary division with its leaflets of a bipinnate or tripinnate leaf.

From Project Gutenberg

Fronds two to six inches long, triangular-ovate, acute, broadest at the base, tripinnate.

From Project Gutenberg

From a systematic point of view these leaves indicate the origin of the water-parsnips from ordinary umbellifers, which generally have bi- and tripinnate leaves.

From Project Gutenberg

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

From Project Gutenberg

A more highly developed form of the typical plant, the lower pinnæ being often very broad, and the fronds tripinnate.

From Project Gutenberg