Media Access Control; MAC
Technical term in computer networking; refers to the sublayer that controls how devices on a network uniquely identify themselves and access the physical medium.
The Media Access Control address uniquely identifies a network device.
Common abbreviation for 媒体アクセス制御アドレス; refers specifically to the hardware address, while 媒体アクセス制御 is the broader protocol layer.
Compound of 媒体 (medium), アクセス (access), and 制御 (control), calqued from English 'Media Access Control'.