apparatus

apparatus is a   Noun

Definition:

[1] Things provided as means to some end.

[2] Hence: A full collection or set of implements, or utensils, for a given duty, experimental or operative; any complex instrument or appliance, mechanical or chemical, for a specific action or operation; machinery; mechanism.

[3] A collection of organs all of which unite in a common function; as, the respiratory apparatus.

Synonyms: