Access Control List (ACL) definition in Computer Security terms:
Definition(s): A list of permissions associated with an object. The list specifies who or what is allowed to access the object and what operations are allowed to be performed on the object.
Source(s): CNSSI 4009-2015
A mechanism that implements access control for a system resource by enumerating the identities of the system entities that are permitted to access the resources.
Source(s): NIST SP 800-82 Rev. 2 (RFC 4949)
reference: CSRC Glossary