Word.ws English Dictionary

semidiesel

semidiesel noun: an internal combustion engine of a type resembling the diesel engine in having heavy oil for its fuel, which is injected in a spray just before the end of the compression stroke and is fired without electrical ignition. The fuel is sprayed into an iron box (called a hot bulb or hot pot) opening into the combustion chamber, and heated for ignition by a blast lamp until the engine is running, when it is ordinarily kept red-hot by the heat of combustion.

Noun

semidiesel (plural semidiesels)

  1. (attributive, often) An internal combustion engine of a type resembling the diesel engine in having heavy oil for its fuel, which is injected in a spray just before the end of the compression stroke and is fired without electrical ignition. The fuel is sprayed into an iron box (called a hot bulb or hot pot) opening into the combustion chamber, and heated for ignition by a blast lamp until the engine is running, when it is ordinarily kept red-hot by the heat of combustion.

Forms of semidiesel

pluralsemidiesels

Origin of semidiesel

From semi- + diesel.

Questions about semidiesel

What does semidiesel mean?
Semidiesel means an internal combustion engine of a type resembling the diesel engine in having heavy oil for its fuel, which is injected in a spray just before the end of the compression stroke and is fired without electrical ignition. The fuel is sprayed into an iron box (called a hot bulb or hot pot) opening into the combustion chamber, and heated for ignition by a blast lamp until the engine is running, when it is ordinarily kept red-hot by the heat of combustion.
What part of speech is semidiesel?
Semidiesel is a noun.
What is the plural of semidiesel?
The plural of semidiesel is semidiesels.

Words near semidiesel in the dictionary

  1. semidiapentes
  2. semidiaphaneity
  3. semidiaphanous
  4. semidiatessaron
  5. semidiatessarons
  6. semidiesel
  7. semidiesels
  8. semidigested
  9. semidilapidated
  10. semidilapidation
  11. semidilute

Source and license

Adapted from Wiktionary: semidiesel (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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