Latin. n. Grape, ivyberry or other small berry, pip, (grape) pit seed. - pl. Acini. (Botany) (a) One of the small grains or drupelets which make up some kinds of fruit, as the blackberry, raspberry, etc. (b) A grape stone.
- (Anat.) One of the granular masses which constitute a racemose or compound gland, as the pancreas; also, one of the saccular recesses in the lobules of a racemose gland.