inky cap

noun

Definition of inky cap

: a mushroom (genus Coprinopsis, especially C. atramentaria) whose pileus deliquesces into an inky fluid after the spores have matured

called also ink cap

Illustration of inky cap

Illustration of inky cap

First Known Use of inky cap

1923, in the meaning defined above

Keep scrolling for more

Learn More about inky cap

Time Traveler for inky cap

Time Traveler

The first known use of inky cap was in 1923

See more words from the same year

Statistics for inky cap

Cite this Entry

“Inky cap.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/inky%20cap. Accessed 8 December 2019.

More from Merriam-Webster on inky cap

Rhyming Dictionary: Words that rhyme with inky cap

Britannica.com: Encyclopedia article about inky cap

Comments on inky cap

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

WORD OF THE DAY

to constrict the range or activity of

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
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!