Hydroscope
- n. A kind of water clock, used anciently for measuring time, the water tricking from an orifice at the end of a graduated tube.
- n. An instrument designed to mark the presence of water, especially in air.
The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.