·noun A Grapestone.
II. Acinus ·noun One of the small grains or drupelets which make up some kinds of fruit, as the blackberry, raspberry, ·etc.
III. Acinus ·noun 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.