on·o·mat·o·poe·ia     (ä-nə--tə--ä)

n.  The formation or use of words such as buzz or murmur that imitate
the sounds associated with the objects or actions they refer to.
[Late Latin, from Greek onomatopoii, from onomatopoios, coiner of names  :
onoma, onomat-, name; see n-men- in Indo-European Roots + poiein, to make; see
kwei-2 in Indo-European Roots.]