jam band

noun

plural jam bands
: a band (especially a rock band) whose performances are distinguished by frequent and often lengthy jazzlike improvisation
Blues Traveler is part of the new wave of jam bands … that play long, long shows and inspire fan devotion reminiscent of the Grateful Dead.Dean Johnson
This Friday, the jam band Phish—which … remains uniquely regarded for its improvisational prowess and zealous, wayfaring fans—will arrive in New York City for thirteen shows …Amanda Petrusich
… Moon Taxi embodies the best of the jam band aesthetic: positive, bright, challenging and fun.Ann Powers
sometimes hyphenated when used before another noun
Gov't Mule brought a refreshing oomph to … the jam-band scene.Matt Wake

Examples of jam band in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
With Allmans keyboardist Chuck Leavell and bassist Lamar Williams, a school friend who had replaced Oakley, Jaimoe joined Sea Level, a largely instrumental jam band that made several albums. David Browne, Rolling Stone, 12 June 2026 There were plans for the popular jam band Goose to follow last fall, but the city—already on edge amid the violence wrought by the presence of ICE—required additional security measures that proved impossible to meet. Jimmy Jellinek, SPIN, 27 Apr. 2026 Local Grateful Dead fans are in for a massive treat this weekend as Gillian Welch and David Rawlings celebrate the legendary jam band’s music during three big shows. Jim Harrington, Mercury News, 17 Apr. 2026 Phish is a jam band with a loyal and enthusiastic fanbase that first became popular in the 90s. Carly Sauvageau, USA Today, 15 Apr. 2026 Devotees of Phish were thrilled to discover that a previously uncirculated 1990 show by the jam band is included. ABC News, 7 Apr. 2026 The night’s features genre-bending performances from Big Gigantic, Goth Babe and Tycho, hip-hop acts BigXthaPlug and Paris Texas, and jam bands Dogs in a Pile and Eggy. Patrick Connolly, The Orlando Sentinel, 27 Feb. 2026 After sets from intergenerational jam bands and folk-rock legends, the newest resident at Las Vegas’ Sphere will be a little louder and nastier than usual. Los Angeles Times, 25 Feb. 2026 Mega jam band Phish will return to its traditional perch at Dick’s Sporting Goods Park in Commerce City this summer after a tryout at Boulder’s Folsom Field last year. John Wenzel, Denver Post, 18 Feb. 2026

Word History

First Known Use

1934, in the meaning defined above

Time Traveler
The first known use of jam band was in 1934

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Cite this Entry

“Jam band.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jam%20band. Accessed 25 Jun. 2026.

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