cup and ball joint

A ball-and-socket joint. cup-and-cone, s. Metal.: An apparatus used for charging iron furnaces which are worked with clamped tops for collecting the waste gases. cup-and-saucer, s. & a. A. As substantive: 1. Sing .: In the literal sense. 2. Pl . ( cups and saucers): A child's name for acorns and the cups that contain them. B. As adj .: Resembling a cup and saucer. Cup - and - saucer limpet : A popular name for the molluscous genus Calyptræa, given because a proce like half a cup is in the interior of the limpet like shell. [CALYPTREA.]