periscope

• POS: Noun
• HYPHEN: per=i=scope

CIDE DICTIONARY

periscope, n. [Pref. peri- + -scope.].

•  A general or comprehensive view.  [1913 Webster]
•  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.  [1913 Webster]

OXFORD DICTIONARY

periscope, n. an apparatus with a tube and mirrors or prisms, by which an observer in a trench, submerged submarine, or at the rear of a crowd etc., can see things otherwise out of sight.

THESAURUS

periscope

Aqua-Lung, air cylinder, aquascope, bathyscaphe, bathysphere, benthoscope, diving bell, diving boat, diving chamber, diving goggles, diving helmet, diving hood, diving mask, diving suit, scuba, snorkel, submarine, swim fins, wet suit

ROGET THESAURUS

periscope

Vision

N vision, sight, optics, eyesight, view, look, espial, glance, ken, coup d'oeil, glimpse, glint, peep, gaze, stare, leer, perlustration, contemplation, conspection, conspectuity, regard, survey, introspection, reconnaissance, speculation, watch, espionage, espionnage, autopsy, ocular inspection, ocular demonstration, sight-seeing, point of view, gazebo, loophole, belvedere, watchtower, field of view, theater, amphitheater, arena, vista, horizon, commanding view, bird's eye view, periscope, visual organ, organ of vision, eye, naked eye, unassisted eye, retina, pupil, iris, cornea, white, optics, orbs, saucer eyes, goggle eyes, gooseberry eyes, short sight, clear sight, sharp sight, quick sight, eagle sight, piercing sight, penetrating sight, clear glance, sharp glance, quick glance, eagle glance, piercing glance, penetrating glance, clear eye, sharp eye, quick eye, eagle eye, piercing eye, penetrating eye, perspicacity, discernment, catopsis, eagle, hawk, cat, lynx, Argus, evil eye, basilisk, cockatrice, seeing, visual, ocular, optic, optical, ophthalmic, clear-eyesighted, eagle-eyed, hawk-eyed, lynx-eyed, keen- eyed, Argus-eyed, visible, visibly, in sight of, with one's eyes open at sight, at first sight, at a glance, at the first blush, prima facie, Int, look!, the scales falling from one's eyes, an eye like Mars to threaten or command, her eyes are homes of silent prayer, looking before and after, thy rapt soul sitting in thine eyes.