lunula

noun
lu·​nu·​la | \ ˈlü-nyə-lə How to pronounce lunula (audio) \
plural lunulae\ -​(ˌ)lē also -​ˌlī \

Medical Definition of lunula

: a crescent-shaped body part: as
a : the whitish mark at the base of a fingernail

called also half-moon

b : the crescentic unattached border of a semilunar valve

Learn More about lunula

Cite this Entry

“Lunula.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/lunula. Accessed 26 Oct. 2020.

Comments on lunula

What made you want to look up lunula? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Namesakes Word Quiz

  • a citrus fruit possibly named after a person
  • Which of the following is a fruit named after a Moroccan seaport?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!