Definition of thermometer
: an instrument for determining temperature; especially : one consisting of a glass bulb attached to a fine tube of glass with a numbered scale and containing a liquid (such as mercury or colored alcohol) that is sealed in and rises and falls with changes of temperature
thermometricplay \ˌthər-mə-ˈme-trik\ adjective
thermometricallyplay \-tri-k(ə-)lē\ adverb
Recent Examples of thermometer from the Web
As thermometer mercury rises, so does adulthood’s merciless money crunch.
Game changer: The new Bluetooth grill thermometer is Parrilli's favorite new gadget.
As a result, the thermometer soared to 98 degrees, a record for May. 5/28: Hot enough for you today?
When the researchers’ laser pointer was switched off, the thermometer read it as near room temperature.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thermometer'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
THERMOMETER Defined for English Language Learners
Definition of thermometer for English Language Learners
: an instrument used for measuring temperature
THERMOMETER Defined for Kids
Definition of thermometer for Students
: an instrument for measuring temperature
Word Root of thermometer
The Greek word metron, meaning “measure,” gives us the root metr. Words from the Greek metron have something to do with measuring. A thermometer is an instrument that measures temperature. A diameter is the measurement across the center of a circle. The metric system is a system used for measuring size, weight, and volume. A perimeter is the measurement of the outside of a figure or shape.
Medical Definition of thermometer
: an instrument for determining temperature that usually consists either of a device providing a digital readout or of a glass bulb attached to a fine tube of glass with a numbered scale and containing a liquid (as mercury or colored alcohol) that is sealed in and rises and falls with changes of temperature
Seen and Heard
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