[ fyooz ]
/ fyuz /
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See synonyms for: fuse / fused / fusing on Thesaurus.com

a tube, cord, or the like, filled or saturated with combustible matter, for igniting an explosive.
verb (used with object), fused, fus·ing.
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Idioms about fuse

    have a short fuse, Informal. to anger easily; have a quick temper.

Origin of fuse

First recorded in 1640–50; from Italian fuso, from Latin fūsus “spindle” (i.e., a spindle-shaped tube filled with combustible matter)


fuseless, adjectivefuselike, adjective

Other definitions for fuse (2 of 2)

[ fyooz ]
/ fyuz /

Electricity. a protective device, used in an electric circuit, containing a conductor that melts under heat produced by an excess current, thereby opening the circuit.Compare circuit breaker (def. 1).
verb (used with object), fused, fus·ing.
to combine or blend by melting together; melt.
to unite or blend into a whole, as if by melting together: The author skillfully fuses these fragments into a cohesive whole.
verb (used without object), fused, fus·ing.
to become liquid under the action of heat; melt: At a relatively low temperature the metal will fuse.
to become united or blended: The two groups fused to create one strong union.
Chiefly British. to overload an electric circuit so as to burn out a fuse.

Origin of fuse

First recorded in 1675–85 for the verb; from Latin fūsus “melted, poured, cast,” past participle of fundere

synonym study for fuse

2. See melt1.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use fuse in a sentence

British Dictionary definitions for fuse (1 of 2)


US fuze

/ (fjuːz) /

a lead of combustible black powder in a waterproof covering (safety fuse), or a lead containing an explosive (detonating fuse), used to fire an explosive charge
any device by which an explosive charge is ignited
blow a fuse See blow 1 (def. 12)
(tr) to provide or equip with such a fuse

Derived forms of fuse

fuseless, adjective

Word Origin for fuse

C17: from Italian fuso spindle, from Latin fūsus

British Dictionary definitions for fuse (2 of 2)

/ (fjuːz) /

to unite or become united by melting, esp by the action of heatto fuse borax and copper sulphate at a high temperature
to become or cause to become liquid, esp by the action of heat; melt
to join or become combined; integrate
(tr) to equip (an electric circuit, plug, etc) with a fuse
British to fail or cause to fail as a result of the blowing of a fusethe lights fused
a protective device for safeguarding electric circuits, etc, containing a wire that melts and breaks the circuit when the current exceeds a certain value

Word Origin for fuse

C17: from Latin fūsus melted, cast, poured out, from fundere to pour out, shed; sense 5 influenced by fuse 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for fuse

[ fyōōz ]

A safety device that protects an electric circuit from becoming overloaded. Fuses contain a length of thin wire (usually of a metal alloy) that melts and breaks the circuit if too much current flows through it. They were traditionally used to protect electronic equipment and prevent fires, but have largely been replaced by circuit breakers.
A cord of readily combustible material that is lighted at one end to carry a flame along its length to detonate an explosive at the other end.
To melt something, such as metal or glass, by heating.
To blend two or more substances by melting.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Other Idioms and Phrases with fuse


see blow a fuse.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.