ACH
(redirected from adrenocortical hormone)Also found in: Dictionary, Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to adrenocortical hormone: Adrenal cortex hormones
ACH
Automated Clearing House
An electronic funds transfer system allowing for the instantaneous transfer of money between users for payroll deductions, tax refunds, direct deposits, and more transactions. It is run by the National Automated Clearing House Association.