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Basics Test Definitions
Audiology definitions for Basics test
29
Audiology
09/07/2011
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Term
Presbycusis
 Definition
hearing loss associated with aging
Term
Otosclerosis
 Definition
formation of a spongy bone that may affect the normal movement of the stapes
Term
Otitis media
 Definition
infection of the middle ear
Term
Swimmer's ear
 Definition
inflammation of the external ear canal
Term
Cerumen
 Definition
earwax
Term
Atresia
 Definition
absence of the auditory canal
Term
Tympanic membrane perforation
 Definition
Abnormal opening in the eardrum
Term
Tinnitus
 Definition
perceived ringing in the ear
Term
Tympanosclerosis
 Definition
Thickening of the ear drum
Term
Permanent threshold shift
 Definition
irreversible impairment of hearing secondary to noise exposure
Term
Frequency
 Definition
number of cycles in a given time, represented by Hz
Term
db IL
 Definition
Intensity level :: 10^-16 W/cm^2
Term
dB SPL
 Definition
Sound pressure level :: .0002 dynes/cm^2
Term
dB HL
 Definition
Hearing level :: 0
Term
dB SL
 Definition
sensation level :: individual's threshold
Term
O
 Definition
Right ear air
Term
Triangle
 Definition
Right ear air masked
Term
<
 Definition
Right ear bone
Term
[
 Definition
Right ear bone masked
Term
X
 Definition
Left ear air
Term
Square
 Definition
Left ear air masked
Term
Left ear bone
 Definition
>
Term
]
 Definition
left ear bone masked
Term
Normal HL
 Definition
-10 to 20 db
Term
Mild HL
 Definition
21 to 40 db
Term
Moderate HL
 Definition
41 to 60 db
Term
Moderately severe HL
 Definition
61 to 70 dB
Term
Severe HL
 Definition
71 to 90 dB
Term
Profound HL
 Definition
91+ dB