Source : Webster's Revised Unabridged Dictionary (1913)

Trochee \Tro"chee\, n. [L. trochaeus, Gr. ? (sc.?), from ?
   running, from ? to run. Cf. {Troche}, {Truck} a wheel.]
   (Pros.)
   A foot of two syllables, the first long and the second short,
   as in the Latin word ante, or the first accented and the
   second unaccented, as in the English word motion; a choreus.

Source : WordNet®

trochee
     n : a metrical unit with stressed-stressed-unstressed syllables