Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

emeraldine

adjective
em·​er·​al·​dine | \ -lˌdēn, -dīn\

Definition of emeraldine

 (Entry 1 of 2)

: emerald sense 1

emeraldine

noun
em·​er·​al·​dine | \ -dēn\
plural -s

Definition of emeraldine (Entry 2 of 2)

: a blue basic compound yielding bottle-green salts with acids that is formed as an intermediate in the production of aniline black

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 emeraldine

Adjective

emerald entry 1 + -ine

Keep scrolling for more

Learn More about emeraldine

Statistics for emeraldine

Look-up Popularity

Comments on emeraldine

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

Show Comments  Hide Comments 

WORD OF THE DAY

Yooper

Listen to the pronounciation of Yooper

one from the Upper Peninsula of Michigan

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?

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!

Words at Play
Ask the Editors
Word Games