Skip to main content
periscope

periscope

19 6.0
A tube with mirrors that lets you see over or around obstacles
  • noun
  • /ˈpɛrɪˌskoʊp/
translation icon : periscopio
  • The submarine crew used the periscope to scan the surface for potential threats.
  • submarine periscope
  • periscope depth

The sub would come in, Periscope would go up, and we would stretch a line between our our zodes.

Examples

  • We let him have one more look through his periscope.

  • We'll use the periscope to make sure the path is clear.

  • Once this is under control, take us to periscope depth.

  • You'd have to come to periscope depth.

  • Brigham nudges her aside and looks through the eyepiece of the periscope.

    Fiction book (2001)
  • TRENCHES - DAY (1917) LEONARD BARNETT, 19, boyish and handsome, peers into a periscope.

    Fiction book (1998)
  • He adjusted the periscope to get a better view of the ship passing by.

  • During the training exercise, the cadets took turns looking through the periscope to improve their observation skills.

Synonyms

spyglass
vsperiscope
5 7.6

A small tube with a lens that people use to see faraway things at sea

is used to see over or around obstacles using mirrors or prisms

Surface Forms

periscope singular
periscopes plural

Morphology

periscope = scope (semi-transparent) = peri + scope

The word is built from the recognizable components 'peri-' ('around') and 'scope' ('viewing instrument'), but the specific device meaning is specialized and not fully predictable for learners.

Etymology

The word periscope comes from the Greek parts peri- meaning 'around' and -scope meaning 'to look', the same root you see in telescope and microscope. So a periscope lets you 'look around' an obstacle, which is why submarines use it to see above the water and museum models let children see over walls.