from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An aggregate of cells of Dictyosteliida formed during sexual reproduction enclosed in a cellulose wall.
from The Century Dictionary and Cyclopedia
- n. A cyst of large size: applied particularly to the cyst or spore-case of certain algæ, notably Pyronema.
macro- + cyst (Wiktionary)