オキシメーター

noun

oximeter

Medical device that measures blood oxygen saturation, often a pulse oximeter clipped to a fingertip.

• 病びょう院いんでオキシメーターを指ゆびにはめて酸さん素そ飽ほう和わ度どを測はかった。

  At the hospital, they put an oximeter on my finger and measured my oxygen saturation.