'acquirer' definitions:

Definition of 'acquirer'

From: WordNet
noun
A person who acquires something (usually permanently)
noun
A corporation gaining financial control over another corporation or financial institution through a payment in cash or an exchange of stock
noun
The financial institution that dispenses cash in automated teller machines and collects a fee from the bank that issued the credit card
noun
A credit card processing bank; merchants receive credit for credit card receipts less a processing fee [syn: merchant bank, acquirer]