1. a device or tool used to inflate something by pumping air or gas into it

Examples

• She used a tire inflator to fill her bicycle tires.
• The portable inflator made it easy to pump up the air mattress.
• He kept a small inflator in his car for emergencies.
• The balloon inflator at the party made decorating quick and simple.
• The electric inflator automatically stopped when the tire reached the correct pressure.
• We need an inflator to set up the bouncy castle for the kids.