cupulolithiasis

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noun

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.

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Meanings

nouncupulolithiasis (uncountable)
  1. uncountableA 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.

Origin

From cupul(a) + -o- + lithiasis.

Full word history & related roots →
Cite this entry
APA

cupulolithiasis. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/cupulolithiasis

MLA

“cupulolithiasis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cupulolithiasis. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “cupulolithiasis,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/cupulolithiasis.

Source: cupulolithiasis on Wiktionary, CC BY-SA 4.0.