Medical Dictionary
Main Entry:
ac·cel·er·a·tion Pronunciation:
ik-"sel-&-'rA-sh&n, (")ak- Function:
noun 1 : the act or process ofaccelerating
: the state of being accelerated
2 : change of velocity;
also : the rate of this change
3 : advancement in mental growthor achievement beyond the average for one's age