'echoic' definitions:

Definition of 'echoic'

From: WordNet
adjective
(of words) formed in imitation of a natural sound; "onomatopoeic words are imitative of noises"; "it was independently developed in more than one place as an onomatopoetic term"- Harry Hoijer [syn: echoic, imitative, onomatopoeic, onomatopoeical, onomatopoetic] [ant: nonechoic]
adjective
Like or characteristic of an echo [syn: echoic, echolike]

Definition of 'echoic'

From: GCIDE
  • echoic \echoic\ adj.
  • 1. (linguistics) Formed in imitation of a natural sound; -- of words. Contrasted to nonechoic.
  • Syn: imitative, onomatopoeic, onomatopoeical, onomatopoetic. [WordNet 1.5]
  • 2. Like or characteristic of an echo.
  • Syn: echolike. [WordNet 1.5]