dust cap

English

Noun

dust cap (plural dust caps)

1. Something worn to protect one from dust; a cover placed over something to keep off dust.
   • 1899, Kate Chopin, The Awakening:

     Ellen brought him one of her dust-caps, and went into contortions of mirth, which she found it impossible to control, when she saw him put it on before the mirror as grotesquely as he could.