Master account
From ACT Wiki
A bank account used in cash concentration to fund zero balance accounts automatically.
More specifically an account in a cash pooling structure used to fund zero/target/threshold balance accounts automatically or concentrate funds from participating accounts automatically.
The master account may be interest-bearing.
The process used by market participants before settlement of a transaction to ensure that they agree with respect to the terms of the transaction.
This is usually done by matching transaction confirmations sent to a counterparty with those received from that counterparty.
Also known as central account or concentration account.