The Collaborative International Dictionary of English v.0.48:

chairlift \chair"lift\ n.
   a ski lift on which riders are seated.

   Syn: chair lift.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

chairlift
    n 1: a ski lift on which riders (skiers or sightseers) are
         seated and carried up or down a mountainside; seats are
         hung from an endless overhead cable [syn: chairlift,
         chair lift]