We found one dictionary that defines the word nonmagmatic:

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1. nonmagmatic: Wiktionary

Definitions from Wiktionary (nonmagmatic) ▸ adjective:  Not magmatic. ▸ Words similar to nonmagmatic ▸ Usage examples for nonmagmatic ▸ Idioms related to nonmagmatic ▸ Wikipedia articles (New!) ▸ Popular nouns described by nonmagmatic ▸ Words that often appear near nonmagmatic ▸ Rhymes of nonmagmatic ▸ Invented words related to nonmagmatic