WordNet (r) 3.0 (2006):

Spanish lime
    n 1: tropical American tree bearing a small edible fruit with
         green leathery skin and sweet juicy translucent pulp [syn:
         Spanish lime, Spanish lime tree, honey berry,
         mamoncillo, genip, ginep, Melicocca bijuga,
         Melicocca bijugatus]
    2: round one-inch Caribbean fruit with green leathery skin and
       sweet juicy translucent pulp; eaten like grapes [syn:
       genip, Spanish lime]