heliport

from WordNet (r) 3.0 (2006)

heliport
    n 1: an airport for helicopters

from The Collaborative International Dictionary of English v.0.48

heliport \heliport\ n.
   an airport for helicopters.
   [WordNet 1.5]

from Moby Thesaurus II by Grady Ward, 1.0

32 Moby Thesaurus words for "heliport":
      aerodrome, air base, airdrome, airfield, airport, balcony,
      catafalque, dais, emplacement, estrade, field, floor, gallery,
      hustings, island, landing, landing field, landing pad,
      landing stage, launching pad, platform, podium, port, pulpit,
      rostrum, soapbox, stage, step terrace, stump, terrace, tribunal,
      tribune