noun (plural apparatuses)
1 [U] the tools or other pieces of equipment that are needed for a particular activity or task:
a piece of laboratory apparatus * Firefighters needed breathing apparatus to enter the burning house.
2 [C,usually sing.] the structure of a system or an organization, particularly that of a political party or a government:
the power of the state apparatus
3 [C,usually sing.] (technical) a system of organs in the body:
the sensory apparatus
