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The meaning of SANDGLASS is an instrument (such as an hourglass) for measuring time by the running of sand.
(ˈsændˌɡlæs, -ˌɡlɑːs) noun. an hourglass. Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd. Word origin. [1550–60; sand + glass] This word is first recorded in the period 1550–60.
An hourglass (or sandglass, sand timer, or sand clock) is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance (historically sand) from the upper bulb to the lower one due to gravity.
It is also known as a sandglass or a log glass when used in conjunction with the common log for ascertaining the speed of a ship. It consists of two pear-shaped bulbs of glass, united at their apexes and having a minute passage formed between them.
- The Editors of Encyclopaedia Britannica
Feb 23, 2024 · The hourglass, also known as a sandglass or a sand timer, has been used for centuries to measure time. It consists of two glass bulbs connected by a thin neck through which sand flows from the upper bulb to the lower bulb. As the sand slowly trickles down, it marks the passage of time.
Sandglass definition: an hourglass.. See examples of SANDGLASS used in a sentence.
Nov 19, 2019 · The hourglass is sometimes referred to as a sand clock or a sandglass. Like other timepieces, it needs to be carefully calibrated. The hourglass maker must test the instrument and fine tune it to measure the correct length of time.
