Pith helmet

//pɪθ ˈhɛlmɪt// noun

Definitions

Noun
  1. 1
    A lightweight helmet-shaped hat made of the pith of the sola or shola (Indian spongewood) plant covered with white cotton and faced with green cloth.
  2. 2
    a lightweight hat worn in tropical countries for protection from the sun wordnet
  3. 3
    A hat of similar appearance, but made of different materials.

Etymology

Compound of pith + helmet.

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