Source : Webster's Revised Unabridged Dictionary (1913)

Trig \Trig\, v. t. [See {Trigger}.]
   To stop, as a wheel, by placing something under it; to
   scotch; to skid.

Trig \Trig\, n. [See {Trigger}.]
   A stone, block of wood, or anything else, placed under a
   wheel or barrel to prevent motion; a scotch; a skid. [Eng.]
   --Wright.

Trig \Trig\, v. t. [Cf. Dan. trykke to press, Sw. trycka.]
   To fill; to stuff; to cram. [Obs.] --Dr. H. More.

Trig \Trig\, a. [Formerly written trick, akin to trick to
   dress.]
   Full; also, trim; neat. [Prov. Eng. & Scot.]

         To sit on a horse square and trig.       --Brit. Quart.
                                                  Rev.

Source : WordNet®

trig
     adj : (of persons) neat and smart in appearance; "a clean-cut and
           well-bred young man"; "the trig corporal in his jaunty
           cap" [syn: {clean-cut}, {trim}]
     [also: {trigging}, {trigged}]

trig
     n : the mathematics of triangles and trigonometric functions
         [syn: {trigonometry}]
     [also: {trigging}, {trigged}]