magmatic

adjective

mag·​mat·​ic (ˈ)mag¦matik How to pronounce magmatic (audio)
(ˈ)maig-
: of, relating to, or derived from magma
water may fall originally as rain, or it may be magmatic water from the bowels of the earth which ascends to the surface as the steam of volcanoes or in hot springsNational Geographic
compare meteoric

Word History

Etymology

International Scientific Vocabulary magmat- (from New Latin magmat-, magma) + -ic

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Browse Nearby Words

Cite this Entry

“Magmatic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magmatic. Accessed 12 Dec. 2025.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!