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hot-bulb engine

American

[hot-buhlb] / ˈhɒtˈbʌlb /

noun

a low-compression oil engine requiring a heated bulb or cap for ignition.

Etymology

Origin of hot-bulb engine

First recorded in 1910–15

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.