动能

[ noun ]
the mechanical energy that a body has by virtue of its motion
<noun.phenomenon>

kinetic \ki*net"ic\ (k[i^]*n[e^]t"[i^]k or k[-i]*n[e^]t"[i^]k),
a. [Gr. kinhtiko`s, from kinei^n to move.] (Physics)
Moving or causing motion; motory; active, as opposed to
latent.

{Kinetic energy}. See {Energy}, n. 4.