A mercury thermometer is a tool used to measure temperature. Thermometer definition, 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. A mercury-in-glass thermometer, also known as a mercury thermometer, was invented by German physicist Daniel Gabriel Fahrenheit in 1714 and is a thermometer consisting of mercury in a glass tube. It usually consists of a narrow... | Meaning, pronunciation, translations and examples American Heritage® Dictionary of the English Language, Fifth Edition. If you have a mercury thermometer, don't throw it in the trash. This type can be used either orally, which is to say slipped under the tongue, or rectally. Was ist der Unterschied zwischen Alkohol- und Quecksilberthermometern? Thermometers are used to see if you have a fever or tell you how cold it is outside. Imprinted on the tube is a temperature scale. Example sentences with "capillary thermometers", translation memory. A capillary-tube thermometer ensures very high precision. Oral and rectal thermometers: A conventional oral or rectal thermometer consists of a sealed glass tube containing a liquid such as mercury. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Thermometers with a red or blue color most likely contain alcohol, not mercury. * Accuracy: Out of all the liquid-filled Thermometers, the mercury-filled ones are the most accurate. Mercury thermometer; Constant volume gas thermometer; Platinum resistance thermometer; Pyrometer thermometer (i) Mercury thermometer: In this thermometer, the length of a mercury column from some fixed point is … Mercury thermometers are seldom employed because they are an important source of heavy metal pollution of … - Vergleich der wichtigsten Unterschiede. Mercury is used in thermometers because it expands when it is heated. A thermometer is a device for measuring temperature, usually one that works by the expansion of a column of fluid. Definition of mercury-in-glass thermometer in the Definitions.net dictionary. thermometer: 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. Meaning of mercury thermometer. The non-mercury platinum resistance thermometer is as accurate as mercury-containing thermometers through a wide temperature range. These sorts of thermometers are most commonly used in medicine and meteorology. Mercury thermometers are most often made of glass, which is inserted into food to gauge the temperature. One type of thermometer is a narrow, concealed glass tube containing mercury or alcohol which extends along the tube as it expands. Schlüsselbegriffe: Alkohol, Alkoholthermometer, Quecksilber, Quecksilberthermometer, Sensor, Temperatur, Thermometer. In the year 1714, the physicist and engineer Gabriel Fahrenheit Created the first thermometer that used mercury instead of water, as it expanded and contracted more quickly. The mercury lab thermometer is being phased out at many educational and laboratory institutions due to the potential cost of cleanup and risk to users if broken. Most Common Uses. Based on 7 documents 7. Warnings. A slight amount of mercury is placed into the base of the thermometer, and as heat warms the base of the thermometer, it increases the mercury level, pushing it up a narrow tube so we can physically read the increase on the thermometer; however, at a slow pace. Mercury thermometers can be used to determine body, liquid, and vapor temperature. It consists of a bulb containing mercury attached to a glass tube of narrow diameter; the volume of mercury in the tube is much less than the volume in the bulb. Definitions of mercury thermometer 1 n 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 The volume of mercury changes slightly with temperature; the small change in volume drives the narrow mercury column a relatively long way up the tube. Mercury is a toxic chemical, which if released could contaminate the body as well as surrounding areas, rendering it unsafe. Interesting fact: Dating back to the 1600's, thermometers were filled with Brandy instead of mercury. thermometer definition in English dictionary, thermometer meaning, synonyms, see also 'clinical thermometer',gas thermometer',resistance thermometer',dry-bulb thermometer'. Both laboratory and clinical studies show that there is no significant difference in the average accuracy of the two types of thermometers, however there is a greater fluctuation of readings of temperature when using electronic thermometers. COBUILD Key Words for Mechanical Engineering . Sample 3. Definition of mercury thermometer in the AudioEnglish.org Dictionary. In addition, the mercury expansion is more predictable so it can be measured more easily, at the same time published its scale that today is called the Fahrenheit scale to measure temperature. Older thermometers of this type used liquid mercury. In a mercury or alcohol thermometer, the liquid expands as it is heated and contracts when it is cooled, so the length of the liquid column is longer or … Thermometer definition: A thermometer is an instrument for measuring temperature. Type: noun; Copy to clipboard ; Details / edit; GlosbeMT_RnD2. It is also known as mercury-in-glass thermometer. Sample 1. Define Mercury thermometer. Often, a certified thermometer has been tested against standards traceable to NIST, but the user is given less information on the certificate than is typical for a calibration report. In the early 21st century, mercury thermometers were supplanted by electronic digital thermometers, which were more accurate and did not contain toxic mercury. Mercury thermometer is a type of thermometer that uses a bulb filled with mercury as the temperature sensor. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. translation and definition "capillary thermometers", Dictionary English-English online. If a mercury thermometer breaks or leaks, it can release toxic vapors. Thermometers (Mercury) Definition. Mercury thermometers cannot measure temperatures below this point. The thermal expansion is the tendency of metal in which the volume of metal changes with the variation in temperature. Calibrated marks on the tube allow the temperature to be read by the length of the mercury within the tube, which varies (nearly linearly) according to the temperature of the mercury. Thermometric Property | Definition, Formulas, Properties – … Any change in the temperature value of the gas observed in the gas tube is indicated by the change in pressure observed in one of the tubes and alteration of mercury levels in both the tubes. Viele übersetzte Beispielsätze mit "mercury thermometer" – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen. Legal Considerations. Linkedin. means a product or component, other than a dry cell battery, of a product used for measuring temperature that contains mercury or a mercury compound intentionally added to the product or component. Mercury is a dangerous metal. https://www.thefreedictionary.com/mercury+thermometer, | 1686: Gabriel Daniel Fahrenheit, German physicist who invented the, | 1686: Gabriel Daniel Fahrenheit, German |physicist who invented the, In a joint effort between Environment Management (EM) and the QAD, for each, For example, in the process of writing this letter I did some research into surface sea temperatures (SST)--the first recording of which was made by Benjamin Franklin in the Gulf Stream in the late eighteenth century using a, This was one of only a few examples known to exist from the great Dutchman who invented the, 1686: Gabriel Daniel Fahrenheit, German physicist who invented the, Working with Federal Aviation Administration supplied thermometers in the early 1980s, our tolerance was +/- 1 degree when putting a new, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Management of Mercury Waste in an Institution of Sao Paulo State Health Secretary, the Case of Butantan Institute, Partnering for a world free of mercury: efforts against mercury pollution will gain strength under a new UN treaty, FOCUS ON SIGNED THERMOMETER; TREASURE TV's JAMIE BREESE answers your questions on antiques & collectables Visit www.facebook.com/jamiebreesetv Hunters, Mercury Sodium Atmosphere Spectral Imager, Mercury Surface, Space Environment, Geochemistry and Ranging, Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto. Sign up. Mercury fever thermometer means a mercury-added product that is used for measuring body temperature. Traceability can be defined as an unbroken record of documentation ("documentation traceability") or an unbroken chain of measurements and associated uncertainties ("metrological traceability"). Writer Bio. mercury thermometer (n.). Mercury thermometer: Photo by Da Sal on Flickr. Basal thermometers (highly sensitive thermometers placed under the tongue or in the rectum to measure slight temperature changes indicating that ovulation has taken place in a woman). Medical doctors often use a version known as the maximum mercury thermometer to measure human body temperature. oj4. Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you
Do not clean up spilled mercury with bare hands. The Mercury Thermometer, on the other hand, is more durable under general conditions. ‘Some states have banned the use of mercury thermometers as a first step toward phasing out the use of this toxic metal altogether.’ ‘Another option is a digital aural thermometer that measures the temperature in the ear.’ ‘Formerly a medicine-cabinet staple, these mercury thermometers have lately been ruled a public health hazard.’ mercury thermometer, mercury-in-glass thermometer (noun) 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 How to pronounce mercury thermometer? Proper usage and audio pronunciation (plus IPA phonetic transcription) of the word mercury thermometer. What does mercury thermometer mean? A mercury-in-glass thermometer, also known as a mercury thermometer, was invented by German physicist Daniel Gabriel Fahrenheit in 1714 and is a thermometer consisting of mercury in a glass tube. translation and definition "mercury thermometer", English-Arabic Dictionary online. Mercury thermometer (mercury-in-glass thermometer) for measurement of room temperature. Was sind Mercury-Thermometer? Mercury thermometers are distinguished by the silver color in the column. 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. Cooling is the preferred method. Copy. It is also difficult to clean up. When the temperature rises or falls, the mercury expands or contracts, causing it to move up or down the scale inside a tiny passageway. When a substance gets hotter, it expands to a greater volume. Such thermometers use a metal probe to sense temperature. Another type is a digital thermometer, which uses electronics to … As used here, the word "traceability" always means "metrological traceability." High thermal conductivity, high sensitivity to temperature, and good visibility make mercury the best for liquid-filled Thermometers. A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object). Loading... ＋ New List. It's free and takes five seconds. These liquid thermometers are based on the principal of thermal expansion. A thermometer is a tool that measures temperature — how hot or cold something is. Calibrated marks on the tube allow the temperature to be read by the length of the mercury within the tube, which varies (nearly linearly) according to the temperature of the mercury. Thermometric Property Definition: The property of an object which changes with temperature is called a thermometric property.The devices used to measure temperature are called thermometers.. We are giving a detailed and clear sheet on all Physics Notes that are very useful to understand the Basic Physics Concepts. on the path to systematic vocabulary improvement. Different Types of Thermometers: Some different types of thermometers are given below. Email. Noun 1. mercury 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 Digital thermometer synonyms, Digital thermometer pronunciation, Digital thermometer translation, English dictionary definition of Digital thermometer. 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