eutectic

eutectic
/yooh tek"tik/, Physical Chem.
adj.
1. of greatest fusibility: said of an alloy or mixture whose melting point is lower than that of any other alloy or mixture of the same ingredients.
2. noting or pertaining to such a mixture or its properties: a eutectic melting point.
n.
3. a eutectic substance.
[1880-85; < Gk eútekt(os) easily melted, dissolved (eu- EU- + tektós melted) + -IC]

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      the one mixture of a set of substances able to dissolve in one another as liquids (liquid) that, of all such mixtures, liquefies at the lowest temperature. If an arbitrarily chosen liquid mixture of such substances is cooled, a temperature will be reached at which one component will begin to separate in its solid form and will continue to do so as the temperature is further decreased. As this component separates, the remaining liquid continuously becomes richer in the other component, until, eventually, the composition of the liquid reaches a value at which both substances begin to separate simultaneously as an intimate mixture of solids. This composition is the eutectic composition and the temperature at which it solidifies is the eutectic temperature; if the original liquid had the eutectic composition, no solid would separate until the eutectic temperature was reached; then both solids would separate in the same ratio as that in the liquid, while the composition of the remaining liquid, that of the deposited solid, and the temperature all remained unchanged throughout the solidification.

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Universalium. 2010.

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Look at other dictionaries:

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  • eutectic — eu*tec tic ([=u]*t[e^]k t[i^]k), a. [Gr. e y thktos easily melted; e y^ well + th kein to melt.] (Physics) Of maximum fusibility; said of an alloy or mixture which has the lowest melting point which it is possible to obtain by the combination of… …   The Collaborative International Dictionary of English

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  • eutectic — 1. adjective /juˈtɛk.tɪk/ Describing the lowest possible temperature at which a mixture of substances solidifies or melts 2. noun /juˈtɛk.tɪk/ a) The temperature of the eutectic point b) A …   Wiktionary

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  • eutectic — adjective Etymology: Greek eutēktos easily melted, from eu + tēktos melted, from tēkein to melt more at thaw Date: 1884 1. of an alloy or solution having the lowest melting point possible 2. of or relating to a eutectic alloy or solution or its… …   New Collegiate Dictionary

  • eutectic — 1. Easily melted; denoting specifically mixtures of certain chemical compounds that have a lower melting point than any of their individual ingredients; e.g., a solid, such as menthol, that when triturated with another solid of the same class,… …   Medical dictionary

  • eutectic — eu•tec•tic [[t]yuˈtɛk tɪk[/t]] adj. 1) chem. of greatest fusibility: said of an alloy or mixture whose melting point is lower than that of any other alloy or mixture of the same ingredients 2) chem. of or pertaining to such a mixture or its… …   From formal English to slang

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