Initialism of Aggregate Measurement of Support.
"The WTO report detailed how various countries reduced their AMS to comply with international agricultural trade rules."
In plain English: AMS is an acronym for Advanced Mobile Switching, which refers to older telephone network technology that handles calls and connections between different phone systems.
"The company has several AMS systems running in their data center to manage inventory and sales records efficiently."
Initialism of American Mathematical Society.
"The AMS published the new journal article on number theory last week."