An hourglass measuring a fixed amount of time (not necessarily one hour).
（计时用的）沙漏
Example sentencesExamples
In addition to their lack of accuracy, sandglasses, waterclocks and candles were also limited in the total length of time they could measure before having to be reset.
She glanced over at the sandglass, and started.
Early oceanic travellers used a sandglass to tell the time.
Definition of sandglass in US English:
sandglass
nounˈsan(d)ɡlas
An hourglass measuring a fixed amount of time (not necessarily one hour).
（计时用的）沙漏
Example sentencesExamples
Early oceanic travellers used a sandglass to tell the time.
In addition to their lack of accuracy, sandglasses, waterclocks and candles were also limited in the total length of time they could measure before having to be reset.