耳みみ抜ぬき

noun, noun or participle which takes 'suru'

ear clearing; equalizing ear pressure

Commonly used in diving, flying, and other situations where external pressure changes. Often used as a suru-verb (耳抜きする).

• ダイビングでは、耳みみ抜ぬきがとても大たい切せつです。

  Ear clearing is very important in diving.

• 飛ひ行こう機きが降こう下かするとき、耳みみ抜ぬきをしてください。

  Please clear your ears when the plane descends.