ZOOM

I. verb Etymology: imitative Date: 1903 intransitive verb 1. to move with a loud low hum or buzz, to go speedily ; zip , to climb for a short time at an angle greater than that which can be maintained in steady flight so that the machine is carried upward at the expense of stored kinetic energy, 3. to focus a camera or microscope on an object using a ~ lens so that the object's apparent distance from the observer changes, focus , zero , to increase sharply , transitive verb to cause to ~, II. noun Date: 1917 1. an act or process of ~ing, an image created by ~ing, a ~ing sound, a means of producing an enlarged image (as in a camera)