fuel cell

noun

: a device that continuously changes the chemical energy of a fuel (such as hydrogen) and an oxidant directly into electrical energy

Examples of fuel cell in a Sentence

Recent Examples on the Web

Many major automakers have already developed hydrogen internal combustion engines or hydrogen fuel cell technology, but the higher cost of hydrogen production compared with gas and diesel is a barrier to wider usage, Keoleian said. — ABC News, 11 Aug. 2026

Because Heven’s proprietary hydrogen fuel cell refueling systems operate with full grid independence, drones can refuel in minutes at remote base camps, with the aim of reducing downtime between missions. — Nia Bowers, USA Today, 6 Aug. 2026

That’s why, understanding how their surfaces change during operation could help design more efficient batteries, fuel cells and other clean-energy technologies. — Georgina Jedikovska, Interesting Engineering, 27 July 2026

Developers also say that the tower would produce its own electricity — 30 megawatts — on site with natural gas fuel cells, off the Evergy grid with diesel generators as backup, and would not affect electric bills. — Chris Higgins, Kansas City Star, 21 July 2026

Word History

First Known Use

1922, in the meaning defined above

Rhymes for fuel cell

• barbell
• bedwell
• befell
• bluebell
• bombshell
• bridewell
• capelle
• cartel
• carvel
• clamshell
• cogswell
• compel

Kids Definition

fuel cell

noun

: a device that continuously changes the chemical energy of a fuel (as hydrogen) into electrical energy