Apparatus
WordNet
noun
(1) Equipment designed to serve a specific function
(2) (anatomy) a group of body parts that work together to perform a given function
"The breathing apparatus"
WiktionaryText
Noun
- The entirety of means whereby a specific production is made existent or task accomplished.
- A complex machine or instrument.
- An assortment of tools or instruments.
- A bureaucratic organization, especially one influenced by political patronage.
- A vehicle used for emergency response.
Usage notes
- Is occasionally used as an invariant plural:
- Look at all of those apparatus.