Definitions

1. noun

A container, typically cylindrical, for storing or serving something, especially a gas or a liquid.

“She carefully carried the canister of propane to the grill.”

2. noun

A device for holding or supporting a part of a machine, such as a canister brake or a canister rotor.

“The canister of the bicycle’s brake system was clogged and needed to be cleaned.”

3. noun

A container or case for holding or storing a piece of equipment, especially in a military context.

“The canister of the soldier’s radio was damaged and needed to be replaced.”