anorthite

noun
an·​or·​thite | \ ə-ˈnȯr-ˌthīt How to pronounce anorthite (audio) \

Definition of anorthite

: a white, grayish, or reddish feldspar occurring in many igneous rocks

Other Words from anorthite

anorthitic \ ˌa-​nȯr-​ˈthi-​tik How to pronounce anorthite (audio) \ adjective

First Known Use of anorthite

1823, in the meaning defined above

History and Etymology for anorthite

French, from a- + Greek orthos straight

Learn More About anorthite

Time Traveler for anorthite

Time Traveler

The first known use of anorthite was in 1823

See more words from the same year

Dictionary Entries Near anorthite

anorthic

anorthite

anorthite-basalt

See More Nearby Entries 

Statistics for anorthite

Cite this Entry

“Anorthite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anorthite. Accessed 29 Sep. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on anorthite

Britannica.com: Encyclopedia article about anorthite

WORD OF THE DAY

Test Your Vocabulary

Challenging Words You Should Know

  • hedgehog reading a book
  • Often used to describe “the march of time,” what does inexorable mean?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

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!