Pronunciation: (âr"ō-dī-nam'iks), [key]
—n. (used with a sing. v.)
the branch of mechanics that deals with the motion of air and other gases and with the effects of such motion on bodies in the medium. Cf. aerostatics (def. 1).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.