con·​duc·​tor | \kən-ˈdək-tər \

Definition of conductor 

: one that conducts: such as

a : guide

b : a collector of fares in a public conveyance a railroad conductor

c : the leader of a musical ensemble an orchestra conductor

d(1) : a material or object that permits an electric current to flow easily Copper wire is a good conductor. — compare insulator, semiconductor

(2) : a material capable of transmitting another form of energy (such as heat or sound) Aluminum is a conductor of heat.

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Other Words from conductor

conductorial \ ˌkän-​ˌdək-​ˈtȯr-​ē-​əl , kən-​ \ adjective

Examples of conductor in a Sentence

Metal is a good conductor of electricity.

Recent Examples on the Web

Michael Tilson Thomas is the conductor of the National Youth Orchestra this year, leading this teenage ensemble in one New York concert before its tour of the Far East. New York Times, "6 Classical Music Concerts to See in N.Y.C. This Weekend," 12 July 2018 The other Jim Gaffigan is a classical music conductor, presently for the Lucerne Symphony Orchestra. CBS News, "Jim Gaffigan on that other Jim Gaffigan," 1 July 2018 Pruitt, on the other hand, is the happy conductor of the Trump train. Umair Irfan, Vox, "Why Trump would really, really rather not fire Scott Pruitt," 15 June 2018 My son Lucas is the conductor of Bangor Symphony in Maine. Stephanie Nolasco, Fox News, "'Three's Company' actor Peter Mark Richman reveals what it was like working with Suzanne Somers, Sophia Loren," 1 June 2018 Gibson is an award-winning choir conductor who has held gospel workshops around the world. Erica Gonzales, Harper's BAZAAR, "The Royal Wedding Will Feature Some Incredible Musicians," 24 Apr. 2018 Since air is a poor heat conductor, trapped air provides remarkably good insulation. Chris Lee, Ars Technica, "Porous silk fiber traps heat, hides a rabbit from IR camera," 4 Apr. 2018 Most new copper pans are lined with stainless steel, which is a poor conductor of heat, so Hamann stuck with the traditional tin. Ruth Reichl, Town & Country, "The Ultimate Kitchen Tool: A Hand-Forged Copper Pan," 20 Mar. 2018 Copper is the conductor of choice for wind power, being used in the generator windings, power cables, transformers and inverters. Andrew Barron, Smithsonian, "The Countries Poised To Become “Renewable Superpowers”," 20 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'conductor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of conductor

15th century, in the meaning defined above

History and Etymology for conductor

see conduct entry 2

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Statistics for conductor

Last Updated

7 Nov 2018

Look-up Popularity

Time Traveler for conductor

The first known use of conductor was in the 15th century

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More Definitions for conductor



English Language Learners Definition of conductor

: a person who stands in front of people while they sing or play musical instruments and directs their performance

: a person who collects money or tickets from passengers on a train or bus

: a material or object that allows electricity or heat to move through it


con·​duc·​tor | \kən-ˈdək-tər \

Kids Definition of conductor

1 : a person in charge of a public means of transportation (as a train)

2 : a person or thing that directs or leads She is the conductor of our school orchestra.

3 : a substance or body capable of transmitting light, electricity, heat, or sound Copper is a good conductor of electricity.


con·​duc·​tor | \kən-ˈdək-tər \

Medical Definition of conductor 

1a : a material or object that permits an electric current to flow easily

b : a material capable of transmitting another form of energy (as heat or sound)

2 : a bodily part (as a nerve fiber) that transmits excitation

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More from Merriam-Webster on conductor

Spanish Central: Translation of conductor

Nglish: Translation of conductor for Spanish Speakers

Britannica English: Translation of conductor for Arabic Speakers Encyclopedia article about conductor

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full of whispering sounds

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