telescope

B2 · Upper Intermediate Countable noun Science Technical

n. any large scientific machine used to collect signals from space, like radio waves.

n. any instrument used in astronomy for observing distant objects by collecting and focusing electromagnetic radiation.

“The scientists used a giant radio telescope to listen for signals from deep space.”

“The array consists of several individual telescopes working in unison to provide high-resolution data of the solar system's outer reaches.”

C1 · Advanced Technical

v. to slide parts of an object inside each other to make it shorter or longer.

v. to slide or pass one section within another, typically to shorten or lengthen a tubular object.

“The handle of the suitcase can telescope down so it is easier to store.”

“The tripod legs are designed to telescope, allowing the photographer to adjust the height quickly on uneven terrain.”

C1 · Advanced Academic · Formal

v. to make something much shorter or to combine many things into one.

v. to condense or compress a period of time or a series of events into a shorter duration.

“The director had to telescope the long book into a two-hour movie.”

“The curriculum was telescoped into a single semester, forcing students to master complex concepts at an accelerated pace.”