/mohld"bawrd', -bohrd'/ , n.
1. the curved metal plate in a plow that turns over the earth from the furrow.
2. a large blade mounted on the front of a bulldozer to push loose earth.
3. a board forming one side or surface of a mold for concrete.
[ 1300-50; r. earlier moldbred, ME mold bred. See MOLD 3 (defs. 1 and 2), MOLD 1 (def. 3), BOARD ]