MHL definition by American Heritage Dictionary
mhl - Computer Definition
(Mobile High-Definition Link) An interface between portable devices (smartphones, tablets, etc.) and an HDTV set. With support for 1080p resolution and 7.1 channel 192 kHz audio, MHL devices began to ship in 2011. Devices can obtain power through the MHL interface, and they use a standard 5-pin Micro USB socket with the exception of new Samsung products, which have 11-pins. In 2013, MHL Version 3.0 added support for 4K (2160p) resolution. See MHL Consortium.