a set of equipment or tools or a machine that is used for a particular purpose
The campers had an apparatus that showed them their exact location.
The laboratory is equipped with state-of-the-art scientific apparatus, including microscopes and spectrometers, for conducting advanced research.
The firefighter donned his protective apparatus, including a helmet, oxygen tank, and heat-resistant suit, before entering the burning building.
The voting apparatus used in the election ensured a fair and transparent process, with electronic ballots and secure counting mechanisms in place.
