tripinnate

American  

[trahy-pin-eyt] / traɪˈpɪn eɪt /

Often tripinnated

adjective

Botany.

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

---

tripinnate British  

/ -eɪt, traɪˈpɪnɪt /

adjective

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

---

Other Word Forms

Derived Forms

• tripinnately
  adverb

Etymology

Origin of tripinnate

First recorded in 1750–60; tri- + pinnate

Example Sentences

The dense cliff brake may be described as follows: Stipes three to nine inches tall, blades one to three inches, triangular-ovate, pinnate at the summit, and tripinnate below.

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

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

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

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

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

C. GRAVEOLENS.—This is a dwarf shrub, with neatly tripinnate leaves, and solitary, strongly-scented yellow flowers of medium size.

From Hardy Ornamental Flowering Trees and Shrubs by Webster, Angus Duncan

Fronds eight to eighteen inches long, lanceolate-oblong, tripinnate.

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