abatements definition
abatement (plural abatements) 1  The act of abating, or the state of being abated; a lessening, diminution, or reduction; a moderation; removal or putting an end to; the suppression of. [First attested from 1340 to 1470.] the abatement of a nuisance is the suppression thereof. The amount abated; that which is taken away by way of reduction; deduction; decrease; a rebate or discount allowed; in particular from a tax. [Late 15 th century.]