Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: a bur marigold (Bidens cernua)
You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
probably translation of New Latin Bidens, genus name
Keep scrolling for more
Resources for double-tooth
Comments on double-tooth
What made you want to look up double-tooth? Please tell us where you read or heard it (including the quote, if possible).
full of whispering sounds
Get Word of the Day daily email!
Difficult Vocab Quiz
Test your knowledge - and maybe learn something along the way.
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Words from the week of 11/16/2018
This is just to say / Don't confuse them
What exactly is the 'it' being sufficed?
Taking a usage peeve to task
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
Another round of challenging vocab!
(Secret October WOTD Quiz)
A game of winding words.