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 | long thick piece of wood or metal or concrete, etc., used in construction |
any long raised border or margin of a bone or tooth or membrane | a gymnastic apparatus used by women gymnasts |
a long narrow natural elevation or striation | the broad side of a ship |
a long narrow range of hills | (nautical) breadth amidships |
a long narrow natural elevation on the floor of the ocean | a signal transmitted along a narrow path; guides airplane pilots in darkness or bad weather |
any long raised strip | a column of light (as from a beacon) |
| a group of nearly parallel lines of electromagnetic radiation |