headgear

/HH EH1 D G IH0 R/
noun
  1. 1

    Anything worn on the head, such as a helmet.

  2. 2

    The harness that fits on a horse's head.

  3. 3

    The lifting gear at the head of a mine or deep well.

  4. 4

    The rigging on the foresail

  5. 5

    A type of orthodontic appliance attached to dental braces that aids in correcting severe bite problems.

Source: https://en.wiktionary.org/wiki/headgear