apparatus

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌæpəˈreɪtəs/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌæpəˈrætəs, -ˈreɪtəs/

US:USA pronunciation: respellingUSA pronunciation: respelling(ap′ə rat′əs, -rā′təs)

Inflections of 'apparatus' (n):

ap•pa•rat•us /ˌæpəˈrætəs, -ˈreɪtəs/USA pronunciation n., pl. -tus, -tus•es.

a group of instruments, machinery, or materials having a particular function:[uncountable]firefighting apparatus.
any complex instrument or mechanism for a particular purpose:[countable]made an apparatus from wires and tubes to signal the ship.
[countable] the means by which a system functions: the apparatus of government.

See -pare-¹.

ap•pa•rat•us (ap′ə rat′əs, -rā′təs),USA pronunciation n., pl. -tus, -tus•es.

a group or combination of instruments, machinery, tools, materials, etc., having a particular function or intended for a specific use:Our town has excellent fire-fighting apparatus.
any complex instrument or mechanism for a particular purpose.
any system or systematic organization of activities, functions, processes, etc., directed toward a specific goal:the apparatus of government; espionage apparatus.
Physiologya group of structurally different organs working together in the performance of a particular function:the digestive apparatus.

Latin apparātus equipment, origin, originally the act of equipping, preparation, equivalent. to apparā(re) to prepare (ap- ap-¹ + parāre; see prepare) + -tus suffix of verb, verbal action
1620–30

Collins Concise English Dictionary © HarperCollins Publishers::

apparatus /ˌæpəˈreɪtəs; -ˈrɑːtəs; ˈæpəˌreɪtəs/ n ( pl -ratus, -ratuses)

a collection of instruments, machines, tools, parts, or other equipment used for a particular purpose
a machine having a specific function: breathing apparatus
the means by which something operates; organization
any group of organs having a specific function

Etymology: 17th Century: from Latin, from apparāre to make ready

'apparatus' also found in these entries (note: many are not synonyms or translations):

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