das Thermometer, –
thermometer
Definition & meaning
A Thermometer is a technical instrument used to measure temperature or a temperature gradient. It consists of two important elements: a temperature sensor (e.g., the bulb of a mercury-in-glass thermometer or the digital sensor in an infrared thermometer) in which some physical change occurs with temperature, and some means of converting this physical change into a numerical value that can be read by an observer.
In everyday life, it is most commonly used to measure body temperature for medical purposes, air temperature for weather reports, or the temperature of food during cooking.
Grammar & Word origin
The word is a neuter noun in German (das Thermometer). The plural form remains unchanged: die Thermometer.
The term is a compound word derived from two Ancient Greek roots:
- thermos: meaning "warm" or "hot."
- metron: meaning "measure."
It was introduced into the scientific lexicon in the 17th century to describe the newly invented devices capable of quantifying heat levels.
Synonyms & antonyms
Synonyms:
- Wärmemesser: A literal German translation of the Greek components, used occasionally in technical or older contexts.
- Temperaturfühler: Specifically refers to the sensor part of a thermometer or a digital probe.
- Messgerät: A general term for any measuring instrument.
Antonyms: There are no direct antonyms for a thermometer, as it is a neutral tool of measurement. While one might consider devices that change temperature (like a Heizkörper for heating or a Kühlschrank for cooling) to be functional opposites, they do not share the same linguistic category.
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Examples
Das Thermometer zeigt fünf Grad.noun
The thermometer shows five degrees.
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