IPA: /ˈɒksɪˌmɛtə/
KK: /ˈɑksɪˌmɛtər/
A device that measures how much oxygen is in the blood.
The doctor used an oximeter to check the patient's oxygen levels.
Oximeter → It is formed from "oxi-" (from Greek "oxus", meaning sharp or acid, often used to refer to oxygen) and "-meter" (from Greek "metron", meaning measure). The word "oximeter" refers to an instrument that measures the level of oxygen in the blood.
Think of 'sharp' or 'acid' ('oxi-') as relating to oxygen, and 'meter' as a device that measures. This helps you remember that an oximeter is a device that measures oxygen levels.