女用室内头巾之一种
Mobcap \Mob"cap`\, n. [D. mop-muts; OD. mop a woman's coif + D. muts cap.] A plain cap or headdress for women or girls; especially, one tying under the chin by a very broad band, generally of the same material as the cap itself. --Thackeray.
mobcap n : large high frilly cap with a full crown; formerly worn indoors by women