to draw, as a liquid, by the action of the mouth and tongue, which tends to produce a vacuum, and causes the liquid to rush in by atmospheric pressure; to draw, or apply force to, by exhausting the air.-to draw liquid from by the action of the mouth; as, to suck an orange; specifically, to draw milk from (the mother, the breast, etc.) with the mouth; as, the young of an animal sucks the mother, or dam; an infant sucks the breast.-to draw in, or imbibe, by any process resembles sucking; to inhale; to absorb; as, to suck in air; the roots of plants suck water from the ground.-to draw or drain.-to draw in, as a whirlpool; to swallow up.-to draw, or attempt to draw, something by suction, as with the mouth, or through a tube.-to draw milk from the breast or udder; as, a child, or the young of an animal, is first nourished by sucking.-to draw in; to imbibe; to partake.-the act of drawing with the mouth.-that which is drawn into the mouth by sucking; specifically, mikl drawn from the breast.-a small draught.-juice; succulence.