What does "combustionary" mean?

Of, or pertaining to, combustion.

How do you pronounce "combustionary"?

Pronounced //kəmˈbʌst͡ʃəˌnɛəɹi//.

/kəmˈbʌst͡ʃəˌnɛəɹi/ adj

adj ·Rare ·Advanced level

Adjective

From combustion + -ary.