Main Entry:

ae·ci·um

Pronunciation:

\ˈē-shē-əm, ˈē-sē-\

Function:

noun

Inflected Form(s):

plural -cia \-shē-ə, -sē-\

Etymology:

New Latin, from Greek aikia outrage, assault, from aikēs, aeikēs unseemly, from a- + -eikēs, from eikenai to seem

Date:

1905

: the fruiting body of a rust fungus in which the first binucleate spores are usually produced

— ae·cial \-sh(ē-)əl\ adjective