Periscope

['perɪskəʊp] or ['pɛrɪskop]

Definition

(noun.) an optical instrument that provides a view of an otherwise obstructed field.

Typed by Katie--From WordNet

Definition

(n.) A general or comprehensive view.

(n.) an optical instrument of tubular shape containing an arrangement of lenses and mirrors (or prisms), allowing a person to observe a field of view otherwise obstructed, as beyond an obstructing object or (as in submarines) above the surface of the water.

Checked by Andrew

Definition

n. an instrument like the altiscope used in directing submarine boats.—adj. Periscop′ic.

Typed by Jolin