plural of add on

(transitive, slang, dated, horse racing) To geld (a horse). / Used other than figuratively or idiomatically: see add, list. / (transitive) To consider as an additional example to an expansive list.

Community for Open Antimicrobial Drug Discovery

Alternative spelling of readd

(idiomatic, chiefly Hong Kong) To make extra effort.

(sciences, engineering) To combine the magnitude of two uncorrelated signals, usually noise or errors, by taking the square root of the sum of the squares.

(idiomatic) To further a loss with mockery or indignity; to worsen an already unfavourable situation.

(dated) To offer one's opinion.

Used other than figuratively or idiomatically: see add, fuel, fire. / (idiomatic) To worsen a conflict between people; to inflame an already tense situation.

Alternative form of add fuel to the fire.