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