In this test, a tall, thin tube holds a sample of your blood. The speed at which the red blood cells fall to the bottom of the tube is measured. Inflammation can cause abnormal proteins to appear in your blood. These proteins cause your red blood cells to clump together.
From Wikipedia, the free encyclopedia. A user-defined function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment. 1 BASIC language.
user interface, interface - (computer science) a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the system. interpretive program, interpreter - (computer science) a program that translates and executes source language statements one line at a time.