from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The temperature at which a solid becomes a liquid at a fixed pressure, usually standard pressure.
  • noun The temperature at which a solid and its liquid are in equilibrium, at any fixed pressure.

from The Century Dictionary.

  • noun The point or degree of temperature at which a solid body melts; the point of fusion or fusibility. See fusion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry The temperature at which the solid and liquid phases of a substance are in equilibrium; it is relatively insensitive to changes in pressure

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the temperature below which a liquid turns into a solid


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