GRAMMATICAL CATEGORY OF HYDROSCOPE
Hydroscope is a noun. A noun is a type of word the meaning of which determines reality.
What is Hydroscope for?
: a device for enabling a person to see an object at a considerable distance below the surface of water by means of a series of mirrors enclosed in a steel tube — compare water glass.
Is Hydroscopic a word?
hydroscope. a device for viewing things below the surface of a body of water. -Ologies & -Isms.