Simple past tense and past participle of telescope.(verb)
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Use "telescoped" in a sentence
"How Flashman came to be within earshot of Pulleine and have a view of Durnford, whose retreat had begun some miles away, one can only guess; no doubt he moved at his customary high speed, and it is likely that in his recollection of his panic-stricken confusion he has unwittingly "telescoped" events and time."
"Of course I have 'telescoped' my comments, necessarily leaving out a lot."
"As Whiting phrases it, he has "telescoped" the sonata form."