The Collaborative International Dictionary of English v.0.48:

majagua \majagua\ n.
   1. A shrubby tree (Hibiscus tiliaceus) widely distributed
      along tropical shores, which yields a light tough wood
      used for canoe outriggers and a fiber used for cordage and
      caulk; it is often cultivated for ornament.

   Syn: mahoe, mahagua, balibago, purau, Hibiscus tiliaceus.
        [WordNet 1.5]

   2. An erect forest tree (Hibiscus elatus) of Cuba and
      Jamaica having variably hairy leaves and orange-yellow or
      orange-red flowers; it yields a moderately dense timber
      for cabinetwork and gunstocks.

   Syn: Cuban bast, blue mahoe, mahoe, mahagua, Hibiscus
        elatus.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

majagua
    n 1: shrubby tree widely distributed along tropical shores;
         yields a light tough wood used for canoe outriggers and a
         fiber used for cordage and caulk; often cultivated for
         ornament [syn: mahoe, majagua, mahagua, balibago,
         purau, Hibiscus tiliaceus]
    2: erect forest tree of Cuba and Jamaica having variably hairy
       leaves and orange-yellow or orange-red flowers; yields a
       moderately dense timber for cabinetwork and gunstocks [syn:
       Cuban bast, blue mahoe, mahoe, majagua, mahagua,
       Hibiscus elatus]