Definition for Periscope:

• 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.

Synonyms for Periscope:

• n.

  •
  • telescopic.
  •finder (noun)
  • periscopes.
  •optical instrument (noun)
  • concave lens,
  • telescope,
  • lorgnette,
  • magnifier,
  • magnifying glass,
  • eyeglass,
  • condenser,
  • ocular,
  • binocular,
  • lens,
  • mirror,
  • convex lens,
  • camera,
  • optical instrument,
  • microscope,
  • pince-nez,
  • eyepiece,
  • prism,
  • field glasses.
  •optical instruments (noun)
  • concave lens,
  • telescope,
  • lorgnette,
  • magnifier,
  • magnifying glass,
  • eyeglass,
  • condenser,
  • ocular,
  • binocular,
  • lens,
  • mirror,
  • convex lens,
  • camera,
  • optical instrument,
  • microscope,
  • pince-nez,
  • eyepiece,
  • prism,
  • field glasses.

• Other synonyms:

  •
  • telescopic.
  •Other relevant words:
  • compass,
  • area,
  • diving suit,
  • bathyscaphe,
  • finder,
  • drift,
  • snorkel,
  • breadth,
  • diving mask,
  • gamut,
  • diving hood,
  • room,
  • latitude,
  • horizon,
  • telescopic,
  • scuba,
  • field,
  • expanse,
  • spectroscope,
  • bathysphere,
  • diving chamber,
  • scope,
  • diving bell,
  • chance,
  • diving helmet,
  • dimension,
  • periscopes,
  • realm,
  • oscilloscope,
  • submarine,
  • wet suit,
  • air cylinder,
  • benthoscope,
  • domain,
  • range,
  • extent,
  • purview,
  • schnorkel.

Antonyms for Periscope:

• n.

  • finder
    loser, stray, owner.

Holonyms for Periscope:

• n.

  • artifact
    submarine, u-boat, sub, pigboat.

Hyponym for Periscope:

• n.

  • artifact
    optical instrument.