An instrument for measuring the passage of time by the passage of sand through a narrow opening.(noun)
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Use "sandglass" in a sentence
"The set designer explains that the sandglass chamber was not meant to be disassembled, but stuff like this happens all the time on a movie production - making the impossible possible."
"He glanced at the sandglass that he had turned over just moments ago and then thoughtfully back to the Masterharper."
"To look out fairly was impossible; for not only was all the lower part of the frame hillocked up like a sandglass, and the sides filled in with dusky plaits, but even in the middle, where some outlook was, it led to very little."