Толковый словарь английского языка - decay

I. verb see: chance Date: 15th century intransitive verb to decline from a sound or prosperous condition, to decrease usually gradually in size, quantity, activity, or force, to fall into ruin, to decline in health, strength, or vigor, to undergo decomposition , transitive verb to cause to ~ ; impair , to destroy by decomposition, ~er noun Synonyms: see: ~ II. noun Date: 15th century gradual decline in strength, soundness, or prosperity or in degree of excellence or perfection, a wasting or wearing away ; ruin, destruction, death, 4. rot, the product of ~, a decline in health or vigor, decrease in quantity, activity, or force: as, spontaneous decrease in the number of radioactive atoms in radioactive material, spontaneous disintegration (as of an atom or a particle)