circa 1704, in the meaning defined at sense 1
Time Traveler for helicoid
See more words from the same year
Cite this Entry
“Helicoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/helicoid. Accessed 2 Jul. 2022.
More Definitions for helicoid
See Definitions and Examples »
Get Word of the Day daily email!
Which Word Does Not Belong?
Can you spell these 10 commonly misspelled words?
A daily challenge for crossword fanatics.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
As illustrated by some very smart pups
Bikini, bourbon, and badminton were places first
Do you take pride in Pride?
Look up any year to find out
How to use a word that (literally) drives some pe...
We're intent on clearing it up
Editor Emily Brewster clarifies the difference.
"The public is a hot mess"
You’re gonna need some moxie to ace this quiz
Take the quiz
Take a (break/brake) and (pore/pour) over this (c...
Can you outdo past winners of the National Spelli...