(slang, derogatory) The degradation of mental faculties, intelligence, common sense, or moral character.

Alternative spelling of brain rot

tropical ulcer

(figuratively, idiomatic) To suffer a fate worse than death. / Used other than figuratively or idiomatically: see rot, in, hell.

The rotting of a fish's fin due to bacterial or fungal infection.

Third-person singular simple present indicative form of rot through

present participle of rot through

simple past tense and past participle of rot through

(transitive) To rot so as to create holes in the substance that's rotting.

A soil-borne fungus, Phymatotrichopsis omnivora, that attacks the roots of susceptible plants.