[ee-see-uh m, ee-shee-]

noun, plural ae·ci·a [ee-see-uh, ee-shee-uh] /ˈi si ə, ˈi ʃi ə/. Mycology.

the fruiting body of rust fungi, which bears chainlike or stalked spores.

Origin of aecium

< New Latin < Greek aikíā assault, injury; see -ium
Related formsae·ci·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for aecia


aecidium (iːˈsɪdɪəm)

noun plural -cia (-sɪə) or -cidia (-ˈsɪdɪə)

a globular or cup-shaped structure in some rust fungi in which aeciospores are produced

Word Origin for 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

aecia in Science


sē-əm, ēshē-əm]

Plural aecia (ēsē-ə, ēshē-ə)

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.