Trilobed or Trilobate, three-lobed, [55].

Trilocular, three-celled, as the pistils or pods in fig. [328-330].

Trimerous, with its parts in threes.

Trimorphism, [117]. Trimorphic or Trimorphous, in three forms.

Trinervate, three-nerved, or with three slender ribs.

Triœcious, where there are three sorts of flowers on the same or different individuals, as in Red Maple. A form of Polygamous.

Tripartible, separable into three pieces. Tripartite, three-parted, [55].

Tripetalous, having three petals.

Triphyllous, three-leaved; composed of three pieces.

Tripinnate, thrice pinnate, [59]. Tripinnatifid, thrice pinnately cleft, [57].