telescope

1 of 2

noun

tele·​scope ˈte-lə-ˌskōp 

often attributive

1

: a usually tubular optical instrument for viewing distant objects by means of the refraction of light rays through a lens or the reflection of light rays by a concave mirror compare reflector, refractor

2

: any of various tubular magnifying optical instruments

3

: radio telescope

telescope

2 of 2

verb

telescoped; telescoping

intransitive verb

1

: to become forced together lengthwise with one part entering another as the result of collision

2

: to slide or pass one within another like the cylindrical sections of a collapsible hand telescope

3

: to become compressed or condensed

transitive verb

1

: to cause to telescope

2

: compress, condense

Synonyms

Verb

• capsule
• capsulize
• collapse
• compact
• compress
• condense
• constrict
• constringe
• contract
• narrow (down)
• squeeze

Examples of telescope in a Sentence

Noun

The rings of Saturn can be seen through a telescope.

Verb

for dramatic purposes, the film telescopes the years over which the events occurred into a few short months

Recent Examples on the Web

Noun

Groups going through later in the evening had the opportunity to peek through telescopes with the Astronomical Society of Kansas City. —Beth Lipoff, Kansas City Star, 10 May 2024

The reason the structures were able to go undetected for so long is because these cosmic phenomena are so faint and typically shrouded from the view of cameras and telescopes by stellar dust. —Eric Lagatta, USA TODAY, 9 May 2024

Word History

Etymology

Noun

New Latin telescopium, from Greek tēleskopos farseeing, from tēle- tele- + skopos watcher; akin to Greek skopein to look — more at spy

First Known Use

Noun

1650, in the meaning defined at sense 1

Verb

1866, in the meaning defined at intransitive sense 1

Phrases Containing telescope

• Cassegrainian telescope
• Cassegrain telescope
• radio telescope
• reflecting telescope
• refracting telescope

Kids Definition

telescope

1 of 2 noun

tele·​scope ˈtel-ə-ˌskōp 

: a tubular instrument for viewing distant objects (as objects in outer space) by focusing light rays with mirrors or lenses

telescope

2 of 2 verb

telescoped; telescoping

1

: to slide or cause to slide one within another like the cylindrical sections of a hand telescope

2

: to run together like the sections of a telescope