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Related to aecium: apothecium


 (ē′sē-əm, ē′shē-)
n. pl. ae·ci·a (-sē-ə, -shē-ə)
A cuplike structure of some rust fungi that contains chains of aeciospores.

[New Latin, from Greek aikiā, injury, from aikēs, unseemly, injurious : a-, not; see a-1 + eikenai, to seem, be seemly.]

ae′ci·al (ē′sē-əl, -shē-) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈiːsɪəm) or


n, pl -cia (-sɪə) or -cidia (-ˈsɪdɪə)
(Botany) a globular or cup-shaped structure in some rust fungi in which aeciospores are produced
[C19: New Latin, from Greek aikia injury (so called because of the damage the fungi cause)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈi si əm, ˈi ʃi-)

n., pl. ae•ci•a (ˈi si ə, ˈi ʃi ə)
the fruiting body of rust fungi, which bears chainlike or stalked spores.
[< New Latin < Greek aikíā assault, injury; see -ium2]
ae′ci•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.aecium - fruiting body of some rust fungi bearing chains of aeciosporesaecium - fruiting body of some rust fungi bearing chains of aeciospores
rust fungus, rust - any of various fungi causing rust disease in plants
fruiting body - an organ specialized for producing spores
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