n. 1 a dish made with milk and eggs, usu. sweetened. 2 a sweet sauce made with milk and flavoured cornflour. custard-apple a W. Indian fruit, Annona reticulata, with a custard-like pulp. custard-pie 1 a pie containing custard, commonly thrown in slapstick comedy. 2 (attrib.) denoting slapstick comedy. custard powder a preparation of cornflour etc. for making custard.
[ ME, earlier crusta(r)de f. AF f. OF crouste CRUST ]