Beckman thermometer


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Noun1.Beckman thermometer - a mercury thermometer that measures small differences or changes in temperatureBeckman thermometer - a mercury thermometer that measures small differences or changes in temperature
mercury thermometer, mercury-in-glass thermometer - thermometer consisting of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube marked in degrees Celsius or Fahrenheit; mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube