To use a veto against.
An invocation of that right.
A technique or mechanism for discarding what would otherwise constitute a false positive in a scientific experiment
A political right to disapprove of (and thereby stop) the process of a decision, a law etc.
An authoritative prohibition or negative; a forbidding; an interdiction.
To forbid, to refuse to allow, give, or permit.
To contradict or deny.
To decline, to refuse to do or accept.
To gainsay, to oppose in speech (and by extension writing).