Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: the anterolateral piece of the sternum of a young bird
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:
New Latin, from pleur- + -osteon
Keep scrolling for more
Resources for pleurosteon
Comments on pleurosteon
What made you want to look up pleurosteon? Please tell us where you read or heard it (including the quote, if possible).
to make amends
Get Word of the Day daily email!
Musical Words 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!
How a folk song became a term of derision.
Sorry, not sorry
The participle made famous by Elvis
A not-so-sarcastic history
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'
A quiz in common time.
Build a city of skyscrapers—one synonym at a time.