noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A rare ear condition in which otoliths adhere to a semicircular canal cupula, rendering it heavier than the surrounding endolymph. Upon reorientation of the head relative to gravity, the cupula is weighted down by the dense particles, inducing an immediate and maintained excitation of semicircular canal afferent nerves. uncountable

Etymology

From cupula + -o- + lithiasis.

Related phrases

semicircular canal

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.