View your list of saved words. (You can log in using Facebook.)
Definition of HYPERDYNAMIC
: marked by abnormally increased muscular activity especially when of organic origin <myocardial infarction, with the remaining left ventricular walls being normal to hyperdynamic—R. A. Nishimura et al>
Seen & Heard
What made you want to look up hyperdynamic? Please tell us where you read or heard it (including the quote, if possible).