liquid-in-glass thermometer

liquid-in-glass thermometer

[′lik·wəd in ¦glas thər′mäm·əd·ər] (engineering) A thermometer in which the thermally sensitive element is a liquid contained in a graduated glass envelope; the indication of such a thermometer depends upon the difference between the coefficients of thermal expansion of the liquid and the glass; mercury and alcohol are liquids commonly used in meteorological thermometers.