What's the plural form of combustion triangle? Here's the word you're looking for.
Answer
The noun combustion triangle can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be combustion triangle.
However, in more specific contexts, the plural form can also be combustion triangles e.g. in reference to various types of combustion triangles
or a collection of combustion triangles.
