I. ˈ ̷ ̷ ̷ ̷ at demi- +ˌlün noun
or demilune of hei·den·hain -ˈhīd ə nˌhīn ; or demilune of gia·nuz·zi -jəˈnüt(ˌ)sē
Usage: capitalized H&G
Etymology: demilune from French demi-lune, from demi- (from demi half) + lune moon, from Latin luna; Heidenhain after R.P.H. Haidenhain died 1897 German physiologist; Gianuzzi after Giuseppe Gianuzzi died 1876 Italian physiologist — more at demi- , luna
: 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
II. adjective
Etymology: French demi-lune
: semilunar , crescent