v. & n.
--v.
1. intr. move quickly, esp. with a buzzing sound.
2 a intr. cause an aeroplane to mount at high speed and a steep angle. b tr. cause (an aeroplane) to do this.
3 a intr. (of a camera) close up rapidly from a long shot to a close-up. b tr. cause (a lens or camera) to do this.
--n.
1. an aeroplane's steep climb.
2 a zooming camera shot.
Phrases and idioms:
zoom lens a lens allowing a camera to zoom by varying the focal length.
Etymology: imit.