'Tetrachotomous' definitions:

Definition of 'Tetrachotomous'

From: GCIDE

Tetrachotomous \Tet`ra*chot"o*mous\, a. [Gr. te`tracha in four parts + te`mnein to cut.] (Bot.) Having a division by fours; separated into four parts or series, or into series of fours. [1913 Webster]