the GNU version of the Collaborative International Dictionary of English
adj. Having the parts arranged by threes.
The Century Dictionary and Cyclopedia
Arranged in threes; characterized by an arrangement of parts by threes; in botany, used especially of a compound leaf with three leaflets, or of leaves whorled in threes.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. (of a leaf shape) consisting of three leaflets or sections
Word Usage
"This was the al - ternate season when the western clans came to the caves."