demilune

noun
demi·​lune | \ ˈdem-ē-ˌlün How to pronounce demilune (audio) \

Medical Definition of demilune

: one of the small crescentic groups of granular deeply staining zymogen-secreting cells lying between the clearer mucus-producing cells and the basement membrane in the alveoli of mixed salivary glands

called also crescent of Giannuzzi

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