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cluster cup

American  

noun

  1. aecium.


Etymology

Origin of cluster cup

First recorded in 1880–85

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.

D, part of the leaf of a hawthorn attacked by the cluster cup stage of the same fungus, upper side showing spermogonia, natural size.

From Project Gutenberg

G, vertical section through a young cluster cup.

From Project Gutenberg