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melting point

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noun Physical Chemistry.
  1. the temperature at which a solid substance melts or fuses.
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Origin of melting point

First recorded in 1835–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for melting point

Historical Examples

  • Paraffin with a melting-point of 50° C. or upwards does well.

    On Laboratory Arts

    Richard Threlfall

  • The precipitate is in the form of rosettes or needles; melting-point 137°.

  • The hydrochloride is soluble in alcohol and in water, melting-point about 205°.

  • Such a curve is called the curve of fusion, or the melting-point curve.

  • The melting-point of pure chloral hydrate is 57, the boiling-point 96-98 C.

British Dictionary definitions for melting point

melting point

noun
  1. the temperature at which a solid turns into a liquid. It is equal to the freezing point
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
melting point in Science

melting point

[mĕl′tĭng]
  1. The temperature at which a solid, given sufficient heat, becomes a liquid. For a given substance, the melting point of its solid form is the same as the freezing point of its liquid form, and depends on such factors as the purity of the substance and the surrounding pressure. The melting point of ice at a pressure of one atmosphere is 0°C (32°F); that of iron is 1,535°C (2,795°F). See also state of matter.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
melting point in Culture

melting point

The temperature at which a given material changes from a solid to a liquid, or melts; the same temperature as freezing point. (See phases of matter.)

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Note

Ice melts at thirty-two degrees Fahrenheit (see also Fahrenheit) or zero degrees Celsius.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.