Толковый словарь английского языка - header

noun Date: 15th century one that removes heads, 2. a brick or stone laid in a wall with its end toward the face of the wall, a beam fitted at one side of an opening to support free ends of floor joists, studs, or rafters, a horizontal structural or finish piece over an opening ; lintel, a conduit (as an exhaust pipe for a many-cylindered engine) into which a number of smaller conduits open, a mounting plate through which electrical terminals pass from a sealed device (as a transistor), a fall or dive headfirst , a shot or pass in soccer made by heading the ball, head 15a(1)