According to the Ninth Collegiate, onomatopoeia is the naming of a thing or action by a vocal imitation of the sound associated with it. There are more than one hundred onomatopoeic words in the Collegiate that exhibit this characteristic, identifiable by the use of the word NOISE or SOUND in the definition.
Eckler, A. Ross
"Onomatopoeia: Things That Go Bump,"
Word Ways: Vol. 24
, Article 12.
Available at: http://digitalcommons.butler.edu/wordways/vol24/iss2/12