Definition of periscope in English:

periscope

noun

  • 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.

    • ‘The cork floated on the surface, its quill upright like the periscope of a submarine.’
    • ‘Primitive periscopes, made from long wooden boxes with mirrors, were arranged so that an observer could look over the rim of the trench without getting hit by a sniper's bullet.’
    • ‘The gunner's station is equipped with gunner's main sight, three periscopes and a visual display unit.’
    • ‘Another classic application of the field lens is in a periscope or endoscope.’
    • ‘Human lookouts are used to detect submarine periscopes.’
    • ‘As you descend, your first sight of the submarine will be a selection of masts and periscopes rising from the conning tower.’
    • ‘He also made the submarine commander glare through the periscope with his right eye so that it could be seen more easily.’
    • ‘The driver's compartment is equipped with three observation periscopes.’
    • ‘Although cramped and uncomfortable, these boats were fine examples of engineering, with most of the features to be found on normal-sized boats, including a periscope.’
    • ‘There was the conning tower with the periscope easily identifiable inside; there were the access hatches.’
    • ‘When disturbed, they dive headfirst under water, or they sink slowly into the water until only their heads are above water, like submarine periscopes.’
    • ‘The retractable masts viewed from bow to stern are the periscopes, radar antennae, radio and satellite communications and navigation masts.’
    • ‘One idea that remained on paper only was to train seagulls to land on periscopes at sea thus giving away the position of a submarine!’
    • ‘Closer examination revealed a pair of compound eyes mounted on movable stalks, protruding from a burrow and rotating independently, like the periscopes of a submarine.’
    • ‘The commander has seven optical periscopes which provide 360° observation and a dedicated sight for weapon aiming.’
    • ‘The driver is equipped with three forward periscopes plus one periscope to the left.’
    • ‘Their compound eyes look like a periscope of a submarine and allow the lobster to see images in a mosaic pattern.’
    • ‘Visitors can try out a submariner's bunk, learn how to control the boat as it dives, look through the periscope, detect underwater sounds on a hydrophone, climb into a mock conning tower and operate an escape chamber.’
    • ‘To see above and below the water, mudskippers pop their movable eyes out of the water and move them up and down like a submarine periscope.’
    • ‘Since mines don't emit sounds, produce heat, make transient sounds or poke periscopes through the surface of the water to attack their prey, minemen have to look for shapes.’

Pronunciation

periscope

/ˈpɛrɪskəʊp/