an illegal pitching motion while runners are on base | long thick piece of wood or metal or concrete, etc., used in construction |
one of several parallel sloping beams that support a roof | a gymnastic apparatus used by women gymnasts |
something immaterial that interferes with or delays action or progress | the broad side of a ship |
the area on a billiard table behind the balkline | (nautical) breadth amidships |
| a signal transmitted along a narrow path; guides airplane pilots in darkness or bad weather |
| a column of light (as from a beacon) |
| a group of nearly parallel lines of electromagnetic radiation |