IPA: //ˈɒksɪdʒəneɪtə//
KK: /ˈɑksɪdʒəˌneɪtər/
A device that adds oxygen to water or blood, often used in aquariums or medical procedures.
The aquarium's oxygenator keeps the water healthy for the fish by ensuring they have enough oxygen.
Oxygenator → It is formed from "oxygen" (from Greek "oxus" meaning acid or sharp and "genes" meaning born of or produced by) and "-ator" (a suffix used to indicate an agent or something that performs an action). The word "oxygenator" refers to a device or agent that produces or supplies oxygen.
Think of 'oxygen' as something that is 'produced' or 'supplied' by the '-ator' — an oxygenator is a device that provides oxygen.