simple past tense and past participle of countervail
radioactively
radioactively
adv
Concerning radioactivity
Using a radioactive substance
recordatively
valedictorian
valedictorian
noun
(US, Canada, colloquial) The individual in a graduating class who graduates with the highest grades.
(US, Canada, properly) The individual in a graduating class who delivers the farewell or valedictory address, often the person who graduates with the highest grades.
