plural -s
: granular intrusive igneous rock of various kinds composed chiefly of hornblende, augite, and labradorite with variable amounts of accessory iron ore, biotite, orthoclase, nepheline, or olivine

Word History


Essex county, Massachusetts + English -ite

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near essexite

Cite this Entry

“Essexite.” Dictionary, Merriam-Webster, Accessed 5 Jun. 2023.

Love words? Need even more definitions?

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