Definition of fucus
1
obsolete
: a face paint
2
[New Latin, genus name, from Latin]
: any of a genus (Fucus) of leathery marine brown algae of rocky intertidal zones that are a source of algin and have been used as fertilizer
broadly
: any of various brown algae — compare rockweed
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
The Exceptions Quiz III
-
- Which of these words does not mean "nonsense"?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share fucus
Time Traveler for fucus
The first known use of fucus was in 1591
See more words from the same year