decay

de-cay · noun

imported

Definitions

noun

  1. 1.

    The state or process of rotting or decomposition.

  2. 2.

    A gradual decline in quality, power, or vigor.

  3. 3.

    (physics) The disintegration of a radioactive substance.

  4. 4.

    To rot or decompose through the action of bacteria and fungi.

  5. 5.

    To decline in quality or strength.

Related words

Antonyms: flourishing, growth, preservation
See also: decompose, deteriorate, rot
Synonyms: decline, decomposition, deterioration, rot

Etymology

From Old French decair "to fall, sink, decline," from Vulgar Latin decadere, from Latin de- "down" + cadere "to fall."