n i117778 a form of a bicorne designed to be folded flat, so that it could be conveniently tucked underneath the arm when not being worn.
Senses

English: chapeau-bras; chapeau-de-bras; chapeau de bras

Definitions

English: a form of a bicorne designed to be folded flat, so that it could be conveniently tucked underneath the arm when not being worn.

Synset Relations

hypernym:

Synset Sources
enWordnet (3.0) with confidence 1