1.  telescopic(s = adj.all) - visible only with a telescope; "a bright star with a telescopic companion"
Derived forms noun telescope₁, noun telescopy₁

2.  telescopic(s = adj.all) - capable of discerning distant objects; "a telescopic eye"; "telescopic vision"
Derived form noun telescope₁

3.  telescopic(s = adj.all) - having parts that slide one within another; "a telescopic antenna"; "a telescopic drinking cup"

1.  Of or pertaining to a telescope; performed by a telescope. [1913 Webster]

2.  Seen or discoverable only by a telescope; as, telescopic stars. [1913 Webster]

3.  Able to discern objects at a distance; farseeing; far-reaching; as, a telescopic eye; telescopic vision. [1913 Webster]

4.  Having the power of extension by joints sliding one within another, like the tube of a small telescope or a spyglass; especially (Mach.), constructed of concentric tubes, either stationary, as in the telescopic boiler, or movable, as in the telescopic chimney of a war vessel, which may be put out of sight by being lowered endwise. [1913 Webster]

telescopic, adj.
1 a of, relating to, or made with a telescope (telescopic observations). b visible only through a telescope (telescopic stars).
2 (esp. of a lens) able to focus on and magnify distant objects.
3 consisting of sections that telescope.

Idiom:
telescopic sight a telescope used for sighting on a rifle etc.

Derivative:
telescopically adv.

N  distance, space, remoteness, farness, far- cry to, longinquity, elongation, offing, background, remote region, removedness, parallax, reach, span, stride, outpost, outskirt, horizon, aphelion, foreign parts, ultima Thule, ne plus ultra, antipodes, long range, giant's stride, dispersion, length, cosmic distance, light-years, distant, far off, far away, remote, telescopic, distal, wide of, stretching to, yon, yonder, ulterior, transmarine, transpontine, transatlantic, transalpine, tramontane, ultramontane, ultramundane, hyperborean, antipodean, inaccessible, out of the way, unapproached, unapproachable, incontiguous, far off, far away, afar, afar off, off, away, a long way off, a great way off, a good way off, wide away, aloof, wide of, clear of, out of the way, out of reach, abroad, yonder, farther, further, beyond, outre mer, over the border, far and wide, over the hills and far away, from pole to pole, to the uttermost parts, to the ends of the earth, out of hearing, nobody knows where, a perte de vue, out of the sphere of, wide of the mark, a far cry to, apart, asunder, wide apart, wide asunder, longo intervallo, at arm's length, distance lends enchantment, it's a long long way to Tipperary, out of sight, out of mind.

telescopic sight