What does "nominalizer" mean?

Anything, usually an affixed morpheme or a particle, that changes another part of speech into a noun.

How do you pronounce "nominalizer"?

Pronounced //ˈnɑm.ə.nəl.aɪz.ɚ//.

/ˈnɑm.ə.nəl.aɪz.ɚ/ noun

noun ·Rare ·Advanced level

Noun

1
Anything, usually an affixed morpheme or a particle, that changes another part of speech into a noun. British, English, Oxford, US

From nominalize + -er.