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Hesselman engine

American

[hes-uhl-muhn] / ˈhɛs əl mən /

noun

a low-compression oil engine requiring a spark for ignition.

Etymology

Origin of Hesselman engine

After Swedish engineer Knut Jonas Elias Hesselman (1877–1957), its inventor

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.