The top layer of the network protocol stack. The application layer is concerned with the semantics of work (e.g., formatting electronic mail messages). How to represent that data and how to reach the foreign node are issues for lower layers of the network. [Source: MALAMUD]
APPLICATION LAYER
Meaning of APPLICATION LAYER in English
Internetworking Terms English vocab. Английский словарь межсетевых терминов. 2012