perilymph, per′i-limf, n. the fluid which surrounds the membraneous labyrinth of the ear.
Between the bony walls of the passages and the membranous bag inside is a thin, clear fluid, the perilymph.
The fluid contained in the two scal, and in the remaining lymphatic cavities of the auditory labyrinth, is known as perilymph.
perilymph per·i·lymph (pěr'ə-lĭmf')
The fluid in the space between the membranous and bony labyrinths of the inner ear.