That responds to spoken commands.

plural of active ingredient

The real component of the power of an alternating current circuit; the product of the voltage and that part of the current that is in phase with the voltage

A geologic fault which has exhibited seismic activity within a geologically recent time period.

(idiomatic) A very busy place.

plural of active front

plural of hive of activity

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.