Definition of low-velocity in US English:

low-velocity

adjective

  • 1Characterized by a relatively low speed; specifically (a) (of a gun) firing projectiles with a low muzzle velocity; (b) (Geology) designating a layer of rock through which seismic waves pass slowly, especially an upper layer of the earth's mantle which is inferred to be partially molten.

  • 2Travelling at a relatively low speed; moving relatively slowly.

Origin

Late 19th century. From low + velocity.

Pronunciation

low-velocity

/ˌləʊvɪˈlɒsɪti/