Terminal Ter"mi*nal (-nal), a. [L. terminals: cf. F. terminal. See Term, n.] 1. Of or pertaining to the end or extremity; forming the extremity; as, a terminal edge. 2. (Bot.) Growing at the end of a branch or stem; terminating; as, a terminal bud, flower, or spike. Terminal moraine. See the Note under Moraine. Terminal statue. See Terminus, n., 2 and 3. Terminal velocity. (a) The velocity acquired at the end of a body's motion. (b) The limit toward which the velocity of a body approaches, as of a body falling through the air.