periscope Definition
an apparatus consisting of a tube attached to a set of mirrors or prisms, by which an observer (typically in a submerged submarine or behind a high obstacle) can see things that are otherwise out of sight.
Using periscope: Examples
Take a moment to familiarize yourself with how "periscope" can be used in various situations through the following examples!
Example
The submarine captain used the periscope to survey the area.
Example
The soldier used a periscope to see over the wall.
Example
The periscope allowed the driver to see over the tall truck in front of him.
periscope Synonyms and Antonyms
Phrases with periscope
periscope up
to raise or extend a periscope
Example
The submarine crew periscoped up to get a better view of the surface.
Example
The submarine crew periscoped down to avoid detection.
the depth at which a submarine's periscope is extended above the surface of the water
Example
The submarine captain ordered the periscope depth to be increased.
Origins of periscope
from Greek 'peri-' meaning 'around' and 'skopein' meaning 'to look'
Summary: periscope in Brief
'Periscope' [ˈperɪskəʊp] is a device consisting of a tube with mirrors or prisms that allows an observer to see objects that would otherwise be out of sight. It is commonly used in submarines or behind obstacles. Examples include 'The submarine captain used the periscope to survey the area.' 'Periscope' has phrases like 'periscope up' and 'periscope down,' which refer to raising or lowering the device, and 'periscope depth,' which refers to the depth at which the device is extended.