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Basics Test Definitions
Audiology definitions for Basics test
29
Audiology
Graduate
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
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