endolymph
noun
en·do·lymph ˈen-də-ˌlim(p)f 
: the watery fluid in the membranous labyrinth of the ear
endolymphatic
ˌen-də-lim-ˈfa-tik
adjective 
Example Sentences
Recent Examples on the Web For the vestibular system to function properly, a fluid called endolymph has to traverse the canals of the inner ear, bopping sensory hairs that send electrical impulses to the brain. 
Katherine J. Wu, The Atlantic, 15 June 2022
Katherine J. Wu, The Atlantic, 15 June 2022 Word History
Etymology
International Scientific Vocabulary
First Known Use
circa 1839, in the meaning defined above
Medical Definition
endolymph
noun
en·do·lymph ˈen-də-ˌlim(p)f
: the watery fluid in the membranous labyrinth of the ear