The Collaborative International Dictionary of English v.0.48:

Technicolor \Tech`ni*col"or\, n. [a treadmark]
   the name of one process used for color cinematography; --
   also used attributively. [trademark]
   [PJC]

WordNet (r) 3.0 (2006):

technicolor
    n 1: a trademarked method of making color motion pictures