telescopic

What it means

1. Pertaining to, or carried out by means of, a telescope.First known use 17th c.

   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. astronomySeen by means of a telescope; only visible through a telescope.First known use 17th c.

   telescopic stars

3. Capable of seeing distant objects; far-seeing.First known use 18th c.

In a sentence

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

Where it comes from

1. Proto-Indo-European*kʷelh₁-
2. Ancient Greekτῆλε (têle)
3. Englishtele-
4. Proto-Indo-European*speḱ-
5. Proto-Indo-European*spéḱyeti
6. Proto-Hellenic*sképt͏̌omai
7. Ancient Greekσκέπτομαι (sképtomai)
8. Ancient Greekσκοπός (skopós)
9. Ancient Greekσκοπέω (skopéō)
10. Englishtelescopic

From tele- + -scopic, after telescope.

First known use: 17th c.