plural of countervailance (but the count sense of the word is rare)

(obsolete) To have the same value or number as. / To counteract, counterbalance or neutralize. / To compensate for.

Third-person singular simple present indicative form of countervail

simple past tense and past participle of countervail

(formal) Compensating with equal force.

present participle of countervail

Able to be countervailed; able to be counteracted, counterbalanced or neutralized; compensable.

The characteristic of being countervailable; the ability to be countervailed; compensability.

(uncountable) The act or process of countervailing. / (countable) An instance of that act or process.

A duty levied on an imported article to offset the unfair price advantage it holds due to a subsidy paid to producers or exporters by the government of the exporting country if such imports cause or threaten injury to a domestic industry.