a. An aluminum soap of various fatty acids that when mixed with gasoline makes a firm jelly used in some bombs and in flamethrowers.
b. This jelly.
2. An incendiary mixture of gasoline or other petroleum fuel and a thickener or gel-forming agent.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.