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).