perilymph

As nouns the difference between cochlea and perilymph

is that cochlea is (anatomy) the complex, spirally coiled, tapered cavity of the inner ear in which sound vibrations are converted into nerve impulses while perilymph is an extracellular fluid found in the scala tympani and scala vestibuli of the cochlea.

As nouns the difference between fluid and perilymph

is that fluid is fluid while perilymph is an extracellular fluid found in the scala tympani and scala vestibuli of the cochlea.

As an adjective extracellular

is occurring or found outside of a cell.

As a noun perilymph is

an extracellular fluid found in the scala tympani and scala vestibuli of the cochlea.