- an instrument for measuring temperature, often a sealed glass tube that contains a column of liquid, as mercury, that expands and contracts, or rises and falls, with temperature changes, the temperature being read where the top of the column coincides with a calibrated scale marked on the tube or its frame.
Origin of thermometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for thermometer
Turn the heat down to 325°F and continue cooking until internal temperature reads 140°F on a thermometer.Make Carla Hall’s Roasted Pork Loin With Cranberries
December 24, 2014
It's almost impossible to read the thermometer of public opinion when it comes to LaBeouf's recent melt down/revelation.How Likable Is Alec Baldwin After His ‘New York Magazine’ Confessional?
February 26, 2014
Every time the thermometer drops, another anti-science politician mocks climate change as a fallacy.From Snowy Atlanta to Sunny Sochi, It's All About Global Weirding
February 12, 2014
Every government in Delhi keeps a thermometer in its holster and calibrates its decibel levels according to ground temperature.Mumbai's Dangerous Amnesia
November 25, 2009
Barometer 28.48; thermometer 68 degrees at half-past five o'clock.Explorations in Australia
At sunset the thermometer was at 50°, and at midnight at 30°.The Exploring Expedition to the Rocky Mountains, Oregon and California
Brevet Col. J.C. Fremont
At ten the thermometer stood at 102, and at day-break at 90.
On some cookers, a thermometer is also attached to the cover.Woman's Institute Library of Cookery, Vol. 5
Woman's Institute of Domestic Arts and Sciences
By three o'clock the thermometer showed 116-1/2 in the shade, and I believed it.A Woman Tenderfoot
Grace Gallatin Seton-Thompson
Word Origin and History for thermometer
Online Etymology Dictionary, © 2010 Douglas Harper
- An instrument for measuring temperature.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- An instrument used to measure temperature. There are many types of thermometers; the most common consist of a closed, graduated glass tube in which a liquid expands or contracts as the temperature increases or decreases. Other types of thermometers work by detecting changes in the volume or pressure of an enclosed gas or by registering thermoelectric changes in a conductor (such as a thermistor or thermocouple).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.