eutectic /(ū*tĕk"tĭk)/

eu·tec·tic

eutectic

a.
  1. 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 given components. (Physics)

eutectic

n.
  1. a mixture of substances having a composition providing the minimum melting point ofr mixtures of those substances. Called also a eutectic mixture.