Advanced as in chronometer A timekeeping device, similar to a chronometer, consisting of two glass bulbs connected by a narrow neck that allows sand to flow through at a constant rate, typically used to measure a specific amount of time. Clear All
3 Example Sentences Showcasing the Meaning of 'Hourglass'
As the professor spoke about historical events, he turned the hourglass, emphasizing the limited time available for the lecture.
The alchemist carefully synchronized the hourglass with the celestial movements to ensure precise timing for his magical experiments.
The spaceship's navigation system included an hourglass for astronauts to monitor the duration of their spacewalks, preventing oxygen depletion.
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