the branch of astronomy concerned with the use and design of telescopes
telescopy in American English
(təˈlɛskəpi)
noun
the art or practice of using a telescope
Derived forms
telescopist (teˈlescopist)
noun
telescopy in American English
(təˈleskəpi)
noun
1.
the use of the telescope
2.
telescopic investigation
Derived forms
telescopist
noun
Word origin
[1860–65; telescope + -y3]This word is first recorded in the period 1860–65. Other words that entered Englishat around the same time include: calibrate, metric system, monism, raider, trade name-y is a suffix of various origins used in the formation of action nouns from verbs (inquiry), also found in other abstract nouns (carpentry; infamy)