SINCE 1828
cloudless sulphur
nounDefinition of cloudless sulphur
: a widely distributed New World butterfly (Phoebis sennae) resembling the clouded sulphur but lacking the broad black margin on the wings and being a strong migrant with a larva that is a pest on senna
Comments on cloudless sulphur
What made you want to look up cloudless sulphur? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Time Traveler Quiz: Which Word Came First?
-
- Which came first?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Time Traveler Quiz: Which Word Came First?
Which word entered the English language first?
Take the quiz -
Slippery Words Quiz—Changing with the Times
Do you know these earlier meanings of words?
Take the quiz -
True or False?
Test your knowledge - and maybe learn something along the way.
Take the quiz -
SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share cloudless sulphur
Resources for cloudless sulphur