1. (

• echoic ,
• imitative ,
• onomatopoeic ,
• onomatopoeical ,
• onomatopoetic

) (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 ;

2. (

• echoic ,
• echolike

) like or characteristic of an echo ;