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aecidium

[ee-sid-ee-uh m] /iˈsɪd i əm/
noun, plural aecidia
[ee-sid-ee-uh] /iˈsɪd i ə/ (Show IPA).
Mycology
1.
an aecium in which the spores are always formed in chains and enclosed in a cup-shaped peridium.
Origin of aecidium
1865-1870
1865-70; < New Latin; see aecium, -idium
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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