internal combustion

1. 1.

   the combustion of fuel inside a cylinder (as in an internal-combustion engine)

   Broadercombustion

Questions about internal combustion

What does internal combustion mean?

internal combustion means "the combustion of fuel inside a cylinder (as in an internal-combustion engine)".

Is internal combustion a common word?

internal combustion is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.