Gerund functioning as an uncountable noun meaning the process or state of decay.
Definitions
The process or state of decaying; decomposition. The intense heat accelerated the rotting of the compost pile.
rotgerund / present participle Derived from the verb; used before nouns to describe something that is currently decaying
Definitions
Undergoing decay; decaying. The rotting leaves emitted a pungent smell.
Synonyms
rotting (alternative form)