plural aecidia
: aecium
especially : a cup-shaped or spheroidal aecium with a peridial layer
capitalized : a form genus of rust fungi having only an aecial stage with toothed cup-shaped peridia

Word History


borrowed from New Latin, irregularly for *oecidium, borrowed from Greek oikídion, diminutive of oîkos "house, abode, room"

First Known Use

1751, in the meaning defined at sense 2

Time Traveler
The first known use of aecidium was in 1751

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Dictionary Entries Near aecidium

Cite this Entry

“Aecidium.” Dictionary, Merriam-Webster, Accessed 21 May. 2024.

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