'Panama hat' definitions:

Definition of 'Panama hat'

(from WordNet)
noun
A stiff hat made of straw with a flat crown [syn: boater, leghorn, Panama, Panama hat, sailor, skimmer, straw hat]

Definition of 'Panama hat'

From: GCIDE
  • Panama hat \Pan`a*ma" hat`\ A fine plaited hat, made in Central America of the young leaves of a plant (Carludovica palmata). [1913 Webster]