A viral infection characterized by fever and a skin rash resembling measles. If a pregnant woman gets Rubella (German measles), it may result in sensorineural hearing loss in the unborn child.
Saccule
A chamber in the vestibular labyrinth that helps monitor the position of your head in relation to the ground. The saccule is responsible for detection of vertical movement.
SAS
See Simultaneous Analog Stimulation.
SAT
See Speech Awareness Threshold.
SD
Sudden Deafness. (See Sudden Sensorineural Hearing Loss.)
SDT
See Speech Detection Threshold. (Same as Speech Awareness Threshold.)