oximeter
US /ɑːkˈsɪm.ə.t̬ɚ/
UK /ɑːkˈsɪm.ə.t̬ɚ/
1.
a medical device that measures the oxygen saturation of the blood and the pulse rate, typically by attaching a sensor to a fingertip.
:
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The nurse used an oximeter to check the patient's oxygen levels.
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Many people bought a home oximeter during the pandemic.