'Trinodal' definitions:

Definition of 'Trinodal'

From: GCIDE

Trinodal \Tri*nod"al\, a. [L. trinodis three-knotted; tri- (see Tri-) + nodus knot.]
1. (Bot.) Having three knots or nodes; having three points from which a leaf may shoot; as, a trinodal stem. [1913 Webster]
2. (Geom.) Having three nodal points. [1913 Webster]