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Galileo thermometer
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English
Etymology
Named after Galileo Galilei, who discovered the principle on it is based: that the density of a liquid changes in proportion to its temperature.
Noun
A thermometer made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying densities. As temperature changes, the individual floats rise or fall in proportion to their respective density.
Synonyms
en Galilean thermometer
en eponyms