API = application programming interface

An API is a series of functions that programs can use to make the operating system do their dirty work. Using Windows APIs, for example, a program can open windows, files, and message boxes--as well as perform more complicated tasks--by passing a single instruction. Windows has several classes of APIs that deal with telephony, messaging, and other issues.

Adaptive Pie Interface. Used by various sites to interact with their pie servers. Urban Dictionary, for example, has created APIs so that developers with no pie servers of their own my serve pies to customers at low rates.

Active pharmaceutical ingredient. The part of a drug that causes the effect.

API stands for Automated Processes Incorporated, an American company known for manufacturing high-end recording consoles and pioneering the 500-series "lunchbox" format for outboard equipment.

Skin cream made from beeswax

A underground rapper that even does a few Nu-Metal songs about life, God, or exposing cops or other hypocrites for the cowards they are. Raps or sings about whatever the heck he wants to with a interesting way of talking.

A sister