D defs.my
Entry 2 senses Webster, 1913

echoic

· IPA /ɪˈkəʊɪk/
01 adj. Formed in imitation of a natural sound; -- of words. Contrasted to nonechoic.
  1. 1.
    Formed in imitation of a natural sound; -- of words. Contrasted to nonechoic.(linguistics)
  2. 2.
    Like or characteristic of an echo.