yawing

/Y AO1 IH0 NG/
verb
  1. 1

    To turn about the vertical axis while maintaining course.

  2. 2

    To swerve off course to port or starboard.

  3. 3

    To steer badly, zigzagging back and forth across the intended course of a boat; to go out of the line of course.

  4. 4

    To rise in blisters, breaking in white froth, as cane juice in the clarifiers in sugar works.

Source: https://en.wiktionary.org/wiki/yaw, https://en.wiktionary.org/wiki/yawing