1the process of decaying:the leaves were turning black with rot
rotten or decayed matter.
[usually with modifier] any of a number of fungal or bacterial diseases that cause tissue deterioration, especially in plants.
(often the rot) liver rot in sheep.
2 (the rot) British a process of deterioration; a decline in standards:there is enough talent in the team to stop the rot
US corruption on the part of officials.
3 informal, chiefly British nonsense; rubbish:don’t talk rot [as exclamation]:‘Rot!’ she said with vehemence
1(chiefly of animal or vegetable matter) decay or cause to decay by the action of bacteria and fungi; decompose: [no object]:the chalets were neglected and their woodwork was rotting away [with object]:caries sets in at a weak point and spreads to rot the whole tooth
[no object] gradually deteriorate, especially through neglect:the education system has been allowed to rot
2 [with object]British informal, dated make fun of; tease:has anybody been rotting you?