long thick piece of wood or metal or concrete, etc., used in construction | a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters |
a gymnastic apparatus used by women gymnasts | any long raised border or margin of a bone or tooth or membrane |
the broad side of a ship | a long narrow natural elevation or striation |
(nautical) breadth amidships | a long narrow range of hills |
a signal transmitted along a narrow path; guides airplane pilots in darkness or bad weather | a long narrow natural elevation on the floor of the ocean |
a column of light (as from a beacon) | any long raised strip |
a group of nearly parallel lines of electromagnetic radiation | |