novocaine
noun/ˈnəʊvəkeɪn/
/ˈnəʊvəkeɪn/
(also procaine)
[uncountable] (medical)- a substance used to stop somebody from feeling pain in a particular part of their body, especially by a dentistWord Originearly 20th cent.: from Latin novus ‘new’ + -caine (from cocaine).
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