pinnate(redirected from Tetrapinnate)
Also found in: Dictionary, Thesaurus, Medical.
1. like a feather in appearance
2. (of compound leaves) having the leaflets growing opposite each other in pairs on either side of the stem
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Having parts arranged like a feather, branching from a central axis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.