APPARATUS

apparatus. Apparatus, n. tools, things, furniture, equipage

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Ap″pa‐ratus (�), n.; pl. Apparatus, also rarely Apparatuses (�). [[L., from apparare, apparatum, to prepare; ad + prepare to make ready.]] 1. 1. Things provided as means to some end.
2. 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. 3. (Physiol.) A collection of organs all of which unite in a common function; as, the respiratory apparatus.