from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An instrument for measuring temperature, especially one having a graduated glass tube with a bulb containing a liquid, typically mercury or colored alcohol, that expands and rises in the tube as the temperature increases.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An apparatus used to measure temperature.
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompanied by proportional changes in their volumes or dimensions.
from The Century Dictionary and Cyclopedia
- n. An instrument by which the temperatures (see temperature and thermometry) of bodies are ascertained, founded on the common property belonging to all bodies, with very few exceptions, of expanding with heat, the rate or quantity of expansion being supposed to be proportional to the degree of heat applied, and hence indicating that degree.
- n. Hence, figuratively, anything which (roughly) indicates temperature.
- n. A thermometer whose action is based on the variation of electrical resistance produced by changes of temperature in a metallic conductor. The difference in the resistance between a current passing through a conductor of known and one of unknown temperature gives the difference of temperature between the two. Also called differential-resistance thermometer. The most delicate form in which the principle is applied is the bolometer.
- n. The Rutherford maximum has a light movable steel index at the top of the mercurial column. The tube is placed horizontal, and as the temperature rises the mercury pushes the index before it. When the temperature falls, the index is left in situ to mark the position of the maximum.
- n. In Phillips's maximum, a small bubble of air makes a break in the upper part of the mercurial column. When the temperature begins to fall, the detached portion of the column is left behind to register the highest temperature.
- n. The Negretti maximum has the bore of the tube partly closed by a constriction just above the bulb. In rising temperatures mercury is forced from the bulb past the constriction, but when the temperature falls the mercury cannot readily return to the bulb, and the top of the mercurial column indicates the maximum temperature. In order to reset the thermometer to the current air-temperature, the mercury is forced back into the bulb by whirling the instrument on a swing-pin. This form of maximum is used at the stations of the United states Weather Bureau.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. measuring instrument for measuring temperature
A good digital oven thermometer is important for this phase unless you've been hankering to get up close and personal with Salmonella, E. coli O157: H7, and Listeria monocytogenes.
A $45 infrared digital thermometer is not only a fun toy, it's the perfect way to assess surface temp from a safe distance.
On the other, the thermometer is not going through the same chain of reactions as a human being does, so perhaps not.
On this day, where I am, the thermometer is stuck at zero.
A good oven thermometer is a must for accurate baking.
One of the Counter Intelligence inventions is the Smart Pot, a pot with a built-in thermometer that used a radio-frequency identification chip to communicate with a computerized stove and regulate its own temperature.
Later that afternoon, Gloria comes to our apartment with a variety of excuses for the temperature: our thermometer is no good, she says.
But every one will tell you that no thermometer is right.
Inquiring minds want to know: what kind of oven thermometer is it, Marlene, and how much does it weigh?
But instead of relying on short-term thermometer readings, we should be listening to Mother Earth.