frustulum

/fruhs-tuh-luhm, -chuh-/US // ˈfrʌs tə ləm, -tʃə- //

果壳,甲壳,硬壳,壳

Definitions

n.名词 noun

1
plural frus·tu·la [fruhs-tuh-luh, -chuh-]. /ˈfrʌs tə lə, -tʃə-/. Roman Catholic Church.
- : a small breakfast permitted on fast days.