Medical Dictionary

apparatus

noun ap·pa·ra·tus \ˌap-ə-ˈrat-əs, -ˈrāt-\
plural ap·pa·ra·tus·es or ap·pa·ra·tus

Medical Definition of APPARATUS

:  a group of anatomical and cytological parts having a common function <the respiratory apparatus>—see golgi apparatus
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears