pia-arachnoid

adjective
pia-arach·​noid | \ ˌpī-ə-ə-ˈrak-ˌnȯid, ˌpē- How to pronounce pia-arachnoid (audio) \
variants: also pia-arachnoidal \ -​ə-​ˌrak-​ˈnȯid-​ᵊl How to pronounce pia-arachnoidal (audio) \ or piarachnoid \ ˌpī-​ə-​ˈrak-​ How to pronounce piarachnoid (audio) , ˌpē-​ How to pronounce piarachnoid (audio) \

Medical Definition of pia-arachnoid

 (Entry 1 of 2)

: of, relating to, or being the leptomeninges

pia-arachnoid

noun
variants: also piarachnoid

Medical Definition of pia-arachnoid (Entry 2 of 2)

Comments on pia-arachnoid

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

WORD OF THE DAY

formidable, illustrious, or eminent

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!