frustulum

[ fruhs-tuh-luhm, -chuh- ]

noun

, Roman Catholic Church.

, plural frus·tu·la [fruhs, -t, uh, -l, uh, -ch, uh, -].

1. a small breakfast permitted on fast days.

Word History and Origins

Origin of frustulum¹

From Latin, dating back to 1690–1700; frustule