[ trahy-pin-eyt ]

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

Origin of tripinnate

First recorded in 1750–60; tri- + pinnate
  • Often tri·pin·nat·ed [trahy-pin-ey-tid] /traɪˈpɪn eɪ tɪd/ .

Other words from tripinnate

  • tri·pin·nate·ly, adverb

Words Nearby tripinnate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use tripinnate in a sentence

  • When these leaflets are again divided in the same way, the leaf becomes thrice pinnate, or tripinnate, as in many Acacias.

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

    The Fern Lover's Companion | George Henry Tilton
  • Fronds eight to eighteen inches long, lanceolate-oblong, tripinnate.

    The Fern Lover's Companion | George Henry Tilton
  • Pinnule, a secondary division of a bipinnate or tripinnate leaf, 66.

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

British Dictionary definitions for tripinnate


/ (traɪˈpɪnɪt, -eɪt) /

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

Derived forms of tripinnate

  • tripinnately, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012