fusible metal

variants: or

fusible alloy

Definition of fusible metal

  1. :  a metal or alloy (as of bismuth, lead, and tin or of these three metals and cadmium or indium) having a low melting point usually below 300° F and used typically for dies, fixtures, molds, patterns, boiler safety plugs, and automatic-sprinkler fuses

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a trip made at another's expense

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