plural of hive of activity

(idiomatic) A very busy place.

plural of active front

plural of active matrix

A form of liquid crystal display with a grid of transistors and capacitors that can hold a charge for a limited period of time, contrasted with passive matrix.

The collection of words and phrases that someone commonly uses in speech and writing.

plural of active power

plural of activity trap

(programming) a data structure containing subroutine state information located on the call stack

Self-motion or the power of moving one's self or itself without foreign or external aid.