morning dress

1. (countable, historical, uncountable)A woman's dress designed for informal day wear.

   a woman's informal dress for housework

2. (uncountable)Clothing to be worn in the morning or daytime, as opposed to the evening; now (specifically), a man's formal suit consisting of a (usually) dark grey morning coat, waistcoat and striped trousers accompanied with a top hat, white shirt and tie or cravat.

   Morning dress can be worn up to 5:00 pm.

   Cutaway

regular