yaw
/jɔː/ noun, verb, proper noun
Forms yaws yawing yawed
- noun The rotation of an aircraft, ship, or missile about its vertical axis so as to cause the longitudinal axis of the aircraft, ship, or missile to deviate from the flight line or heading in its horizontal plane.
- noun The angle between the longitudinal axis of a projectile at any moment and the tangent to the trajectory in the corresponding point of flight of the projectile.
- noun (nautical) A vessel's motion rotating about the vertical axis, so the bow yaws from side to side; a characteristic of unsteadiness.
- noun The extent of yawing; the rotation angle about the vertical axis. “the yaw of an aircraft”
- verb (intransitive, aviation) To turn about the vertical axis while maintaining course.
- verb (intransitive, nautical) To swerve off course to port or starboard.
- verb (intransitive, nautical) To steer badly, zigzagging back and forth across the intended course of a boat; to go out of the line of course.
- verb (intransitive) To rise in blisters, breaking in white froth, as cane juice in the clarifiers in sugar works.
- noun A single tumor in the disease called yaws.
- proper noun A surname.
Synonyms
Etymology
Unknown, first attested in the mid-16th century. Perhaps related to yar (“quick, agile”), or alternatively from Old Norse jaga (“to chase, drive, move back and forth”), from Middle Low German jagen (“to hunt, chase, pursue”), from Old Saxon *jagōn, from Proto-West Germanic *jagōn, from Proto-Germanic *jakkōną (“to hunt”).
Webster’s 1913
- verb To rise in blisters, breaking in white froth, as cane juice in the clarifiers in sugar works.
- verb To steer wild, or out of the line of her course; to deviate from her course, as when struck by a heavy sea; --said of a ship.
- noun A movement of a vessel by which she temporarily alters her course; a deviation from a straight course in steering.
Etymology [Cf. Yew, v. i.]
Etymology [Cf. Prov. G. gagen to rock, gageln to totter, shake, Norw. gaga to bend backward, Icel. gagr bent back, gaga to throw the neck back.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “yaw”, CC BY-SA 4.0. Details