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solid fuel

British  

noun

  1. a domestic or industrial fuel, such as coal or coke, that is a solid rather than an oil or gas

  2. Also called: solid propellant.  a rocket fuel that is a solid rather than a liquid or a gas

"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

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With a range of at least 900 miles, the Kheibar Shekan was introduced in 2022 and has solid fuel and a satellite-guidance system.

From The Wall Street Journal Jul. 22, 2026

The toxic byproducts of developing solid fuel and nuclear technologies were not long in arriving.

From Los Angeles Times Jul. 15, 2026

Anchoring Subaru’s SUV lineup, the all-wheel drive, subcompact 2026 Subaru Crosstrek combines a go-anywhere attitude with solid fuel economy and adventurous flair.

From MarketWatch Nov. 26, 2025

The missile, code-named Skyfall by Nato, is thought to be powered by a nuclear reactor, which is supposed to activate after solid fuel rocket boosters have launched it into the air.

From BBC Oct. 26, 2025

Well—briefly does it—it got out a couple of years ago that some of our rocketeers had bought a solid fuel formula from an Italian research outfit for the star probe project.

From Status Quo by Mack Reynolds

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