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

Examples of inky cap in a Sentence

Recent Examples on the Web The alcohol inky—a wonderful name for a mushroom—is a member of the inky cap family, several of which have a great distinction. Popular Science, 11 Mar. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'inky cap.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1923, in the meaning defined above

Time Traveler
The first known use of inky cap was in 1923

Dictionary Entries Near inky cap

Cite this Entry

“Inky cap.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2023.

More from Merriam-Webster on inky cap

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!