lozenge

n. [ F. lozange, losange; perh. the same as OF. losengef flattery, praise, the heraldic sense being the oldest (cf. E. hatchment, blazon). Cf. Losenger, Laudable. ] 1. (Her.) (a) A diamond-shaped figure usually with the upper and lower angles slightly acute, borne upon a shield or escutcheon. Cf. Fusil. (b) A form of the escutcheon used by women instead of the shield which is used by men. [ 1913 Webster ]

2. A figure with four equal sides, having two acute and two obtuse angles; a rhomb. [ 1913 Webster ]

3. Anything in the form of lozenge. [ 1913 Webster ]

4. Specifically: A small cake of sugar and starch, flavored, and often medicated. -- originally in the form of a lozenge. [ 1913 Webster ]

Lozenge coach, the coach of a dowager, having her coat of arms painted on a lozenge. [ Obs. ] Walpole. --
Lozenge-molding (Arch.), a kind of molding, used in Norman architecture, characterized by lozenge-shaped ornaments. [ 1913 Webster ]