fusing at the lowest possible temperature; specif., designating or of a mixture or alloy with a melting point lower than that of any other combination of the same components
Of, relating to, or formed at the lowest possible temperature of solidification for any mixture of specified constituents. Used especially of an alloy whose melting point is lower than that of any other alloy composed of the same constituents in different proportions.
Exhibiting the constitution or properties of such a solid.