adenochrome

noun
aden·​o·​chrome | \ ə-ˈde-nə-ˌkrōm -ˈdē- \
plural -s

Definition of adenochrome

: an acidic red pigment found in the branchial hearts of the octopus

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!

First Known Use of adenochrome

circa 1943, in the meaning defined above

History and Etymology for adenochrome

aden- + -chrome

Keep scrolling for more

Learn More about adenochrome

Time Traveler for adenochrome

Time Traveler

The first known use of adenochrome was circa 1943

See more words from the same year

Statistics for adenochrome

Cite this Entry

“Adenochrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adenochrome. Accessed 10 Jul. 2020.

Comments on adenochrome

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

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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!