A device or machine that supplies air or oxygen to something, like a lawn aerator, faucet aerator, or aquarium aerator.
From 'aerate' plus the suffix -or (also -er), which means 'one who does' or 'a device that does' the action. Common in English for naming tools and machines.
A faucet aerator is a tiny screen that adds air to water as it flows out—it makes water use more efficient while actually making the spray feel stronger!
Complete word intelligence in one call. Free tier — 50 lookups/day.