(~s, invalidating, ~d)
1.
To ~ something such as an argument, conclusion, or result means to prove that it is wrong or cause it to be wrong.
Any form of physical activity will ~ the results...
VERB: V n
2.
If something ~s something such as a law, contract, or election, it causes it to be considered illegal.
An official decree ~d the vote in the capital...
VERB: V n