ball thrombus n.
An antemortem thrombus sometimes found in the left atrium in mitral stenosis.
- Ball turning
the turning of arms or legs on furniture to make them resemble a continuous row of balls. Historical Examples The Gate Table on the same page with eight legs is a good example of ball turning. Chats on Cottage and Farmhouse Furniture Arthur Hayden A simple attachment for ball turning in an ordinary lathe is […]
- Ball up
a spherical or approximately spherical body or shape; sphere: He rolled the piece of paper into a ball. a round or roundish body, of various sizes and materials, either hollow or solid, for use in games, as baseball, football, tennis, or golf. a game played with a ball, especially baseball: The boys are out playing […]
- Ball valve
a valve controlling flow by means of a ball pierced with an opening in one direction and fixed to rotate on a spindle at right angles to the opening. any valve that checks flow by the seating of a ball. Historical Examples Near the bend is an outlet tube, c, provided with “ball valve” or […]
- Ball washer
noun in golf, a device found near the tee of some holes on a course, used for cleaning dirt off of golf balls