Source : Webster's Revised Unabridged Dictionary (1913)

Acquirer \Ac*quir"er\, n.
   A person who acquires.

Source : WordNet®

acquirer
     n 1: a person who acquires something (usually permanently)
     2: a bank gaining financial control over another financial
        institution through a payment in cash or an exchange of
        stock
     3: the financial institution that dispenses cash in automated
        teller machines and collects a fee from the bank that
        issued the credit card
     4: a credit card processing bank; merchants receive credit for
        credit card receipts less a processing fee [syn: {merchant
        bank}]