spinel

noun
spi·​nel | \spə-ˈnel \
variants: or spinelle

Definition of spinel 

1 : a hard crystalline mineral consisting of an oxide of magnesium and aluminum that varies from colorless to ruby red to black and is used as a gem

2 : any of a group of minerals that are essentially oxides of magnesium, ferrous iron, zinc, or manganese

Examples of spinel in a Sentence

Recent Examples on the Web

One was the massive Black Prince’s ruby, a 170-carat spinel that Henry V wore at the Battle of Agincourt in 1415. Steve Hendrix, Washington Post, "As the Nazis bombed Britain, the royals hid the crown jewels in the least likely place," 13 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spinel.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of spinel

1528, in the meaning defined at sense 1

History and Etymology for spinel

Italian spinella, diminutive of spina thorn, from Latin

Keep scrolling for more

Learn More about spinel

Statistics for spinel

Look-up Popularity

Time Traveler for spinel

The first known use of spinel was in 1528

See more words from the same year

More from Merriam-Webster on spinel

Rhyming Dictionary: Words that rhyme with spinel

Britannica.com: Encyclopedia article about spinel

Comments on spinel

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

WORD OF THE DAY

amusing and light sparring with words

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!