halloysite

noun
hal·​loy·​site | \ həˈlȯiˌsīt, haˈ-, -ˌzīt\
plural -s

Definition of halloysite

: a clay mineral Al2Si2O5(OH)4.n H2O occurring in soft white or light-colored masses and in at least two states of hydration n =2, n =4

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 halloysite

French, from Omalius d'Halloy †1875 Belgian geologist + French -ite

Keep scrolling for more

Learn More about halloysite

Share halloysite

Statistics for halloysite

Look-up Popularity

Comments on halloysite

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

WORD OF THE DAY

to corrupt or become corrupted

Get Word of the Day daily email!

Test Your Vocabulary

A Green Quiz

  • shamrock
  • What is the best definition of green-eyed monster?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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!