isid·i·um
| \ īˈsidēəm \
plural isidia\
-ēə
\
Definition of isidium
: an outgrowth from the surface of the thallus in certain lichens that resembles a soredium
Test Your Vocabulary
Eponyms: Words Named After People
-
- What is the best definition of boycott?

Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share isidium