SACRAMENTO, Calif. -- Gov. Jerry Brown wasted no time Tuesday in signing a contentious California bill to impose one of the strictest school vaccination laws in the country following an outbreak of measles at Disneyland late last year.
rebuttal - the speech act of refuting by offering a contrary contention or argument. refutation, defence, defense - the speech act of answering an attack on your assertions; his refutation of the charges was short and persuasive; in defense he said the other man started it.
Definition of rebut for English Language Learners. : to prove (something) is false by using arguments or evidence.