Dictionary   FastHealth  Email This!

 


nictitating membrane

n :  a thin membrane found in many vertebrate animals at the inner angle or beneath the lower lid of the eye and capable of extending across the eyeball - called also membrana nictitans , third eyelid  .
 
 

 
Published under license with Merriam-Webster, Incorporated.  © 1997-2020.







               



               



South Lincoln Medical Center (Kemmerer, Wyoming - Lincoln County)