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- Canal Hearing Aid
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- Coalition of Organizations for Accessible Technologies (COAT)
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- Compendium of Pharmaceuticals and Specialties (CPS)
- Complete Audiological Evaluation
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- Conditioned Audiometry
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- Conductive Hearing Loss
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- Evoked Response Audiometry (ERA)
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- Hair Cells
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- Impedance Measurements
- Impedance Testing
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- LDL
- Left-Corner Audiogram
- Linear Hearing Aid
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- Loudness Discomfort Level (LDL)
- LVAS
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- Middle Ear
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- MM
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- Monaural Amplification
- Most Comfortable Loudness Level (MCL)
- Multi-Memory Hearing Aids
- Musical Ear Syndrome (MES)
- Myringotomy
- Natural Environment
- Natural Language
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- Neurologist
- Neurotologist
- Newborn Hearing Screening
- NIHL
- Noise
- Noise Induced Hearing Loss
- Noise Reduction Rating (NRR)
- Non-Linear Hearing Aids
- Normal Hearing
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- Objective Test Procedure
- Occlusion Effect
- Occupational Safety and Health Agency (OSHA)
- Octave
- OME
- Omni-Directional Microphone
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- Otitis Media with Effusion (OME)
- Otoacoustic Emissions (OAE)
- Otoconia
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- Physicians’ Desk Reference (PDR)
- Pidgin Signed English (PSE)
- Pink Noise
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- Play Audiometry
- Post-lingual
- Post-lingually Deafened
- Posturography
- Potentiation
- Pre-lingual
- Pre-lingually Deafened
- Presbycusis
- Pressure Equalization Tube (PE)
- Profound Hearing Loss
- Programmable Hearing Aid
- Proprioceptive System
- PSP
- PTA
- Pure Tone
- Pure Tone Air Conduction Audiometry
- Pure Tone Audiogram
- Pure Tone Audiometer
- Pure Tone Average (PTA)
- Pure Tone Bone Conduction Audiometry
- Pure Tone Screening
- Pure Tone Testing
- Pure Tone Threshold Audiometry
- Real Ear Measurement
- Real-time Captioning
- Receiver
- Receptive Language
- Recessive Genetic Condition
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- Reverse-slope Hearing Loss
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- Round Window
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- SD
- SDT
- Selective Amplification
- Semicircular Canal
- Sensitivity Control
- Sensorineural Hearing Loss (SHL, SNHL)
- Serous Otitis Media
- Service Coordinator
- Service Provider
- Severe Hearing Loss
- SHL
- Sign Language
- Signal-to-Noise Ratio
- Signed English
- Silhouette
- Simultaneous Analog Stimulation (SAS)
- Ski-slope Hearing Loss
- Slight Hearing Loss
- SLP
- SNHL
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- Sound Bore
- Sound Field System
- Speech Awareness Threshold (SAT)
- Speech Detection Threshold (SDT)
- Speech frequencies
- Speech intelligibility
- Speech Language Pathologist (SLP)
- Speech perception
- Speech processor
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- Speech recognition threshold (SRT)
- Speech Threshold (ST)
- Speechreading
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- Spondee Threshold (ST)
- Squealing
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- SSHL
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- ST
- Stapedectomy
- Stapes
- Steady State Evoked Potentials (SSEP)
- Stetoclip
- Stirrup
- Sub-clinical Hearing Loss
- Sudden Deafness (SD)
- Sudden Hearing Loss
- Sudden Sensorineural Hearing Loss (SSHL, SSNHL)
- Suprathreshold Levels
- Swimmer’s Ear
- Syndromic Hearing Loss
- Synergistic
- T-coil
- T-switch
- TDD
- Telecoil
- Telecommunication Device for the Deaf
- Telecommunications Relay Service (TRS)
- Telemic
- Teletype (TTY)
- Temporary Threshold Shift (TTS)
- Text Telephone
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- Tinnitus
- Tinnitus Masker
- Tinnitus Retraining Therapy (TRT)
- Tonotopic Organization
- Total Communication
- Transient Spontaneous Tinnitus (TST)
- Transient Tonal Tinnitus
- Transition
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- Tumarkin, Otolithic Crisis of
- Tympanic
- Tympanic Membrane
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- Tympanometer
- Tympanometry
- Tympanoplasty
- Tympanostomy Tube
- Tympanum
- Brainstem Auditory Evoked Potential (BAEP)
- Brainstem Auditory Evoked Response (BAER)
- BrainStem Evoked Response (BSER)