Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

sussexite

noun
sus·​sex·​ite | \ -kˌsīt\
plural -s

Definition of sussexite

: a mineral MnBO2OH isomorphous with szaibelyite consisting of a borate of manganese and occurring in white fibrous veins (hardness 3, specific gravity 3.4)

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 sussexite

Sussex, county of northern New Jersey + English -ite

Keep scrolling for more

Learn More about sussexite

Statistics for sussexite

Look-up Popularity

Comments on sussexite

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

Show Comments  Hide Comments 

WORD OF THE DAY

misprision

Listen to the pronounciation of misprision

concealment of treason or felony

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
True or False

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

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!

Words at Play
Ask the Editors
Word Games