What does API stand for?

What does API mean?

API	1st Reader Passed parameter file Computing » File Extensions
API	Academic Performance Index Academic & Science » Universities
API	Academic Performance Index Computing » Software
API	Academic Perofrmance Index Miscellaneous » Unclassified
API	Accountable Property Inventory Business » Accounting
API	Accountable Property Inventory Governmental » Military
API	Accountable Property Inventory Governmental » US Government
API	Accountants for the Public Interest Business » Accounting
API	Acquisition Program Integration Governmental » US Government
API	Acquisition Program Integration Governmental » Military
API	Active Pharmaceutical Ingredient Medical » Laboratory
API	Active Pharmaceutical Ingredient Medical » Hospitals
API	Active Pharmaceutical Ingredient Governmental » FDA
API	Administración Portuaria Integral International » Mexican
API	Adobe Acrobat Plug-In Computing » File Extensions
API	Adobe Printer Ink file Computing » File Extensions
API	Advance Programming Interface Miscellaneous » Unclassified
API	Advanced Photonix, Inc. Business » AMEX Symbols
API	Affluent Parents Index Community » Law
API	After Project Initiation Governmental » Military
API	Agrupación Provincial Independiente International » Spanish
API	Air Pollution Index Academic & Science » Meteorology
API	Alaska Psychiatric Institute Regional » Alaska
API	Alianza Popular de Izquierdas International » Spanish
API	Alianza Popular Informativo International » Spanish