The Collaborative International Dictionary of English v.0.48:

Ceiba \Ceiba\ n.
   a genus of tropical American trees with palmately compound
   leaves and showy bell-like flowers.

   Syn: genus Ceiba.
        [WordNet 1.5]

U.S. Gazetteer (1990):

Ceiba, PR (comunidad, FIPS 16139)
  Location: 18.44492 N, 66.34661 W
  Population (1990): 3454 (1067 housing units)
  Area: 2.5 sq km (land), 0.0 sq km (water)