ˈēs(h)ēəm noun
( plural ae·cia -ēə)
Etymology: New Latin, irregular from Greek aikia torture, assault, from aikēs, aeikēs unseemly, shameful (from a- a- (II) + -eikēs seemly, akin to eoikōs, eikōs fitting, apt) + -ia; akin to Greek eikōn picture, image — more at icon
: the fruiting body of rust fungi sometimes flat and lacking peridial cells and in which the first binucleate spores are usually produced — see caeoma ; compare telium , uredinium