perilymph

[per-i-limf]

noun

Anatomy.

1. the fluid between the bony and membranous labyrinths of the ear.

perilymph

/ ˈpɛrɪˌlɪmf /

noun

1. the fluid filling the space between the membranous and bony labyrinths of the internal ear

Other Word Forms

• perilymphatic adjective

Word History and Origins

Origin of perilymph¹

First recorded in 1830–40; peri- + lymph

Example Sentences

Giza estimates that perhaps only 1 percent of his patients had symptoms — vertigo, for example — that hinted at a perilymph fistula.

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The osseous labyrinth may be regarded as an osseous mould in the petrous portion of the temporal bone, lined by tesselated endothelium, and containing a small quantity of fluid called the perilymph.

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Each canal is surrounded by a thin layer of perilymph, so that it may yield a little to this pressure, and exert a pull or pressure on the nerve-endings in each ampulla.

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The whole of the labyrinth is membranous, and contains a fluid, the endolymph; between the membranous wall of the labyrinth and the enclosing bone is a space containing the perilymph.

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The outer portion is surrounded by a membrane which serves as periosteum to the bone and, at the same time, holds the liquid belonging to this part, called the perilymph.

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