A variant spelling of canister; a cylindrical or rectangular metal container used for storing or carrying dry goods.
Variant of canister, from Latin 'canistrum' (woven basket), from Greek 'kanistron.' The spelling shift from -ster to reflect the canister pronunciation is a modern variant.
This spelling variant shows English's flexibility with borrowed words—both 'canister' and 'cannister' exist in historical documents, but the single-n version eventually won out as standard.
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