[ ee-see-uhm, ee-shee- ]

noun,plural ae·ci·a [ee-see-uh, ee-shee-uh]. /ˈi si ə, ˈi ʃi ə/. Mycology.
  1. the fruiting body of rust fungi, which bears chainlike or stalked spores.

Origin of aecium

<New Latin <Greek aikíā assault, injury; see -ium

Other words from aecium

  • ae·ci·al, adjective

Words Nearby aecium Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for aecium


aecidium (iːˈsɪdɪəm)

/ (ˈiːsɪəm) /

nounplural -cia (-sɪə) or -cidia (-ˈsɪdɪə)
  1. a globular or cup-shaped structure in some rust fungi in which aeciospores are produced

Origin of aecium

C19: New Latin, from Greek aikia injury (so called because of the damage the fungi cause)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for aecium


[ ēsē-əm, ēshē-əm ]

Plural aecia (ēsē-ə, ēshē-ə)
  1. A cuplike structure of some rust fungi that contains chains of aeciospores. Aecia usually form on the bottom surface of leaves.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.