·noun A reaper for wheat, that cuts off the heads only.
II. Header ·noun One who heads a movement, a party, or a mob; head; chief; leader.
III. Header ·noun One who, or that which, heads nails, rivets, ·etc., ·esp. a machine for heading.
IV. Header ·noun A brick or stone laid with its shorter face or head in the surface of the wall.
V. Header ·noun A fall or plunge headforemost, as while riding a bicycle, or in bathing; as, to take a header.
VI. Header ·noun In framing, the piece of timber fitted between two trimmers, and supported by them, and carrying the ends of the tailpieces.