Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

manganous hydroxide

noun

Definition of manganous hydroxide

: a crystalline amphoteric compound Mn(OH)2 that is found in nature as pyrochroite, that is obtained synthetically as a white precipitate by adding alkali to a solution of a manganous salt, and that rapidly turns brown in air by oxidation

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!

Learn More about manganous hydroxide

Statistics for manganous hydroxide

Look-up Popularity

Comments on manganous hydroxide

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

Show Comments  Hide Comments 

WORD OF THE DAY

resurrection

Listen to the pronounciation of resurrection

an act or instance of returning to life

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
True or False

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

TAKE THE QUIZ
Add Diction

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