Dictionary

1telescope

noun, tele·scope often attributive \ˈte-lə-ˌskōp\

: a device shaped like a long tube that you look through in order to see things that are far away

Full Definition of TELESCOPE

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
ADVERTISEMENT

Origin of TELESCOPE

New Latin telescopium, from Greek tēleskopos farseeing, from tēle- tele- + skopos watcher; akin to Greek skopein to look — more at spy
First Known Use: 1648

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith

2telescope

verb

: to become shorter by having one section slide inside another somewhat larger section

: to make (something) shorter in length or time

telescopedtelescop·ing

Full Definition of TELESCOPE

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

First Known Use of TELESCOPE

1867
TELESCOPE Defined for Kids

1telescope

noun tele·scope \ˈte-lə-ˌskōp\

Definition of TELESCOPE for Kids

:  a piece of equipment shaped like a long tube that has lenses for viewing objects at a distance and especially for observing objects in outer space

2telescope

verb
tele·scopedtele·scop·ing

Definition of TELESCOPE for Kids

:  to slide or force one part into another
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears