vetoing

noun | \ ˈvē-tō \ | ve·to

1. : an authoritative prohibition

2. a : a power vested in a chief executive to prevent permanently or temporarily the enactment of measures passed by a legislature

   b : the exercise of such authority — see also pocket veto — compare legislative veto

transitive verb

1. : to refuse to admit or approve; specifically : to refuse assent to (a legislative bill) so as to prevent enactment or cause reconsideration — see also override : to refuse assent to (a legislative bill) so as to prevent enactment or cause reconsideration — see also override