spotting scope vs telescope

spotting scope

noun
  • A compact high-power monocular telescope optimized for detailed observation of distant objects such as wildlife or the strike of a bullet on a target. 

telescope

noun
  • Any instrument used in astronomy for observing distant objects (such as a radio telescope). 

  • A monocular optical instrument that magnifies distant objects, especially in astronomy. 

  • A retractable tubular support for lights. 

verb
  • To collapse, via cancellation. 

  • To extend or contract in the manner of a telescope. 

  • To slide or pass one within another, after the manner of the sections of a small telescope or spyglass. 

  • To come into collision, as railway cars, in such a manner that one runs into another. 

How often have the words spotting scope and telescope occurred in a corpus of books? (source: Google Ngram Viewer )