Definitions for panama hat
Random House Webster's College Dictionary
a hat made of finely plaited young leaves of the jipijapa plant.
Origin of Panama hat:
boater, leghorn, Panama, Panama hat, sailor, skimmer, straw hat(noun)
a stiff hat made of straw with a flat crown
A type of brimmed hat from South America, originally made with straw.
a fine plaited hat, made in Central America of the young leaves of a plant (Carludovica palmata)