otoconia

oto·co·nia

noun pl \-ˈkō-nē-ə\

Definition of OTOCONIA

: small crystals of calcium carbonate in the saccule and utricle of the ear that under the influence of acceleration in a straight line cause stimulation of the hair cells by their movement relative to the gelatinous supporting substrate containing the embedded cilia of the hair cells—called also statoconia