liquidus

[lik-wi-duhs]
noun Physical Chemistry.
(on a graph of temperature versus composition) the curve connecting the temperatures at which a liquid solution is in equilibrium with its vapor and with the solid solution.
Compare solidus2.


Origin:
1900–05; < Latin; see liquid

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Science Dictionary
liquidus   (lĭk'wĭ-dəs)  Pronunciation Key 
The minimum temperature at which all components of a mixture (such as an alloy) can be in a liquid state. Below the liquidus the mixture will be partly or entirely solid. See illustration at eutectic. Compare solidus.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
In a ternary system the locus of all points on the liquidus of constant temperature.
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