n : a round or roundish body or mass: as a : a roundish protuberant part of the body: as (1) : the rounded eminence by which the base of the thumb is continuous with the palm of the hand (2) : the rounded broad part of the sole of the human foot between toes and arch and on which the main weight of the body first rests in normal walking (3) : the padded rounded underside of a human finger or toe near the tip b : EYEBALL c : TESTIS - usu. considered vulgar d : a large pill (as one used in veterinary medicine) : BOLUS
vt : to give a medicinal ball to (as a horse) .
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