telescopic

Etymology

From tele- + -scopic, after telescope.

adj

1. Pertaining to, or carried out by means of, a telescope.
   Within a year or two of Galileo's telescopic discoveries no one disputed that the moon had mountains, Jupiter had moons, Venus had phases and the sun had spots […]. 2015, David Wootton, The Invention of Science, Penguin, published 2016, page 197
2. (chiefly astronomy) Seen by means of a telescope; only visible through a telescope.
   telescopic stars
3. Capable of seeing distant objects; far-seeing.
4. Able to be extended or retracted by the use of parts that slide over one another.
   telescopic baton
5. Referring to parts being extended or retracted along coinciding axes (with or without direct contact between the parts).