reservecontainer
nounUK /rɪˈzɜːv kənˈteɪnə/
US /rɪˈzɜːrv kənˈteɪnər/
A reserve container is a special box that holds extra things kept for later.
The hikers packed a reserve container of water in case they got thirsty.
OTHER MEANINGS
2. A tank kept in reserve for storing fuel or liquid.
The ship has a reserve container for extra fuel.
3. A secondary vessel used to hold a backup supply of a substance.
The lab keeps a reserve container of the chemical in the cold room.
4. A spare receptacle set aside for future use.
We stored the seeds in a reserve container until spring.