i Register
In some senses, antidot is marked as obsolete. Watch for register when choosing this word.
noun
A small, circular region of opposite charge or magnetization, especially one that is part of a semiconductor device
noun
Obsolete form of antidote.
The Cantharides have some part in them, which by a contrarietie of nature serveth as an antidot or counterpoison against their poison[…].