Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

spontaneous combustion

noun

Simple Definition of spontaneous combustion

  • : burning that is caused by chemical actions inside of something rather than by heat from the outside

Source: Merriam-Webster's Learner's Dictionary

Full Definition of spontaneous combustion

  1. :  self-ignition of combustible material through chemical action (as oxidation) of its constituents —called also spontaneous ignition

1795

First Known Use of spontaneous combustion

1795


SPONTANEOUS COMBUSTION Defined for Kids

spontaneous combustion

noun

Definition of spontaneous combustion for Students

  1. :  a bursting of material into flame from the heat produced within itself through chemical action




Learn More about spontaneous combustion


Seen and Heard

What made you want to look up spontaneous combustion? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

not forbidden by law

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

vernal estival hiemal brumal
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ