Meaning of aethalium

ae•tha•li•um

Pronunciation: (ē-thā'lē-um), [key]
— pl. -li•a
  1. a large, plump, pillow-shaped fruiting body of certain myxomycetes, formed by the aggregation of plasmodia into a single functional mass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.