onomatopoeia

n. Formation of a word from a sound associated with what is named (e.g. Cuckoo, sizzle).  onomatopoeic adj. [greek onoma name, poieo make]

n. The formation of words in imitation of sounds; a figure of speech in which the sound of a word is imitative of the sound of the thing which the word represents; as, the buzz of bees; the hiss of a goose; the crackle of fire.