fuel cell


noun

a device that produces a continuous electric current directly from the oxidation of a fuel, as that of hydrogen by oxygen.

Origin of fuel cell

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for fuel cell

fuel cell


noun

a cell in which the energy produced by oxidation of a fuel is converted directly into electrical energy
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

Science definitions for fuel cell

fuel cell


A device that produces electricity by combining a fuel, usually hydrogen, with oxygen. In this reaction, electrons are freed from the hydrogen in the fuel cell by a catalyst, and gain energy from the chemical reaction binding hydrogen and oxygen; this provides a source for electric current. The exhaust of hydrogen fuel cells consists simply of water. Fuel cells are currently used in spacecraft, and increasingly in ground transportation, with potential use everywhere electricity is required.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for fuel cell

fuel cell


An electrochemical device where a chemical reaction produces energy that is converted directly into electricity. Once used primarily in space travel, fuel cells are now being considered for use in cars. Unlike internal-combustion engines, fuel cells do not pollute the environment.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.