'Detergent' definitions:

Definition of 'detergent'

From: WordNet
adjective
Having cleansing power [syn: detergent, detersive]
noun
A surface-active chemical widely used in industry and laundering
noun
A cleansing agent that differs from soap but can also emulsify oils and hold dirt in suspension

Definition of 'Detergent'

From: GCIDE
  • Detergent \De*ter"gent\, a. [L. detergens, -entis, p. pr. of detergere: cf. F. d['e]tergent.] Cleansing; purging. -- n. A substance which cleanses the skin, as water or soap; a medicine to cleanse wounds, ulcers, etc. [1913 Webster]