a movement of deviation from a direct course, as of a ship.
6.
a motion of an aircraft about its vertical axis.
7.
an angle, to the right or left, determined by the direction of motion of an aircraft or spacecraft and its vertical and longitudinal plane of symmetry.
8.
(of a rocket or guided missile)
a.
the act of yawing.
b.
the angular displacement of the longitudinal axis due to yawing.