Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to perilymph: Perilymph fistula


The fluid in the space between the membranous and bony labyrinths of the inner ear.

per′i·lym·phat′ic (-lĭm-făt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Anatomy) the fluid filling the space between the membranous and bony labyrinths of the internal ear
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpɛr ɪˌlɪmf)

the fluid between the bony and membranous labyrinths of the ear.
per`i•lym•phat′ic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.perilymph - the bodily fluid that fills the space between the bony labyrinth and the membranous labyrinth of the inner ear
inner ear, internal ear, labyrinth - a complex system of interconnecting cavities; concerned with hearing and equilibrium
bodily fluid, body fluid, liquid body substance, humour, humor - the liquid parts of the body
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
For instance, researchers at the Massachusetts Eye and Ear Infirmary, Harvard Medical School and Charles Stark Draper Laboratory in Massachusetts developed microfluidic based automated micropump device for direct delivery of drugs into the perilymph fluid within the cochlea - an auditory portion of the inner ear.
It is thought that the gentamicin permeates the perilymph and the endolymph of the inner ear through the round and oval window membranes and damages the vestibular hair cells.
Substances penetrating from the middle ear into the inner ear through the round window cause biochemical changes in perilymph and endolymph.
This allows the endolymph to mix with another fluid between the membranous and bony labyrinths (the perilymph).
When higher concentrations of dexamethasone are targeted in perilymph, very high drug doses have to be used systemically, which may cause serious side effects (1).
Traumatic TM perforation can manifest as sudden severe pain, hearing impairment, bleeding, tinnitus, dizziness, perilymph fistula and facial nerve injury.7Traumatic TM perforation may result into suppurative otitis media and sensorineural hearing loss if not treated in time.
High pitches enter the right ear and cross through the perilymph in search of an audience.
The fluid level of the perilymph in the scala tympani was carefully lowered using cotton wicks so that only a very small amount of fluid (~30 [micro]m thick based on visual comparison with the known diameter of the probe tip) was left to moisten the exposed BM.
Disequilibrium after cochlear implantation caused by a perilymph fistula.
The patient history revealed that his hearing loss might have deteriorated secondary to a labyrinthine or perilymph fistula.
And biology, where in your body will you find a bony labyrinth filled with a fluid called perilymph? YOU FIGURE IT OUT?
They concluded that a defect of the fundus of the internal auditory canal is more likely to produce a perilymph gusher.