Merriam-Webster Logo
SINCE 1828
dictionary thesaurus view recents

epidiorite

noun
Save Word
epi·​diorite | \ ¦epə̇, ¦epē+ \
plural -s

Definition of epidiorite

: a variety of diorite formed by metamorphism from pyroxenic igneous rocks and often being somewhat schistose

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!

History and Etymology for epidiorite

International Scientific Vocabulary epi- + diorite; originally formed as German epidiorit

Keep scrolling for more

Learn More about epidiorite

Statistics for epidiorite

Cite this Entry

“Epidiorite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epidiorite. Accessed 24 May. 2020.

Comments on epidiorite

What made you want to look up epidiorite? Please tell us where you read or heard it (including the quote, if possible).

Show Comments  Hide Comments 

WORD OF THE DAY

xeriscape

Listen to the pronunciation of xeriscape

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Obscure Shapes

  • a pile of three dimensional shapes in green
  • Something that is ooid is shaped like:
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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

Words at Play
Ask the Editors
Word Games