transitive verb, intransitive verb fused, fusing fus′·ing

1. to melt or to join by melting, as metals
2. to unite as if by melting together; blend

Etymology: < L fusus, pp. of fundere, to pour out, shed: see found

noun

1. a narrow tube filled with combustible material, or a wick saturated with such material, for setting off an explosive charge
2. fuze ()
3. Elec. a safety device placed in a circuit consisting of a replaceable plug or tube containing wire or metal that will melt and break the circuit if the current exceeds a specified amperage

Etymology: It fuso, a cord, tube, casing < L fusus, hollow spindle

transitive verb fused, fusing fus′·ing