cupulometry

[kyōō′pyə-lŏmĭ-trē]
n.
  1. A method for testing vestibular function, in which a person rotates in a chair and the duration of vertigo and nystagmus after the chair has stopped is plotted against angular deceleration.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.