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:
pterylology + -ical
Keep scrolling for more
Cite this Entry
“Pterylological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pterylological. Accessed 20 Oct. 2020.
Comments on pterylological
What made you want to look up pterylological? Please tell us where you read or heard it (including the quote, if possible).
See Definitions and Examples »
Get Word of the Day daily email!
Farm Idioms Quiz
Can you spell these 10 commonly misspelled words?
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!
You can never have too much storage.
We won't refuse you service
Words from the week of 10/16/2020
And no, that meme about us isn’t true
We're intent on clearing it up
We're gonna stop you right there
How to use a word that (literally) drives some pe...
The awkward case of 'his or her'
Not your children's farm quiz.
Name that government! Or something like that.
Build a city of skyscrapers—one synonym at a time.