micaceous

adjective

mi·​ca·​ceous (ˈ)mī¦kāshəs How to pronounce micaceous (audio)
1
: consisting of or containing mica
micaceous sandstone
2
: resembling mica (as in foliation or luster)

Word History

Etymology

probably from (assumed) New Latin micaceus, from New Latin mica + Latin -aceus -aceous

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

“Micaceous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micaceous. Accessed 16 Dec. 2025.

Love words? Need even more definitions?

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