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aecidium

American

[ee-sid-ee-uhm] / iˈsɪd i əm /

noun

Mycology.

plural

aecidia

an aecium in which the spores are always formed in chains and enclosed in a cup-shaped peridium.

Etymology

Origin of aecidium

From New Latin, dating back to 1865–70; see origin at aecium, -idium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

B, Part of vertical section through leaf of Berberis vulgaris, with a, aecidium fruits, p, peridium, and sp, spermogonia.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various

Before the teleutospore reaches maturity the nuclei fuse, and the uninucleate condition then continues again until aecidium formation.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various

We find thus that in the eu and opsis forms the association of nuclei takes place at the base of the aecidium which produces the aecidiospores.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023