| Adventitious hearing loss | Hearing loss occurring prior to the development of speech and language.
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| Conductive hearing loss | A hearing loss caused by a problem associated with transmission of sound waves from the outer through the middle ear.
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| Congenital hearing loss | Hearing loss acquired prior to or at birth.
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| Cued speech | Uses 36 different manual cues to aid in distinguishing among the 44 sounds of oral English. Cues can represent vowels, consonants, or a combination.
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| Deaf with a capital "D" | Refers to members of the Deaf culture and community.
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| deaf with a small "d" | Refers to any group of people whose audiological status places them in that range of hearing loss.
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| Fingerspelling | Uses 26 different finger/hand positions to denote each letter of the alphabet.
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| Frequency | Refers to the measurement of sound waves and is expressed in cycles per second or hertz.
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| Hard of hearing | Refers to individuals with mild to severe hearing losses.
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| Hearing | Refers to individuals with no identified hearing loss.
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| Hearing impairment | An impairment in hearing, whether permanent or fluctuating, that adversely affects a child's educational performance.
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| Loudness | Refers to the intensity of a sound and is measured in decibels.
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| Mixed hearing loss | A hearing loss that results when an individual experiences a conductive loss in one ear and a sensorineural loss in the other ear.
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| Myringotomy | Placing small tubes inside the ears to allow air to vent inside the ear ad prevent fluid buildup while relieving the existing pressure.
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| Otitis media | Middle ear infections that can lead to either temporary or permanent hearing loss.
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| Postlingual hearing loss | Hearing loss occurring after the development of speech and language.
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| Sensorineural loss | A hearing loss caused by a problem directly associated with auditory nerve transmission.
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| Signing exact English | Combines existing ASL signs with new signs to create a code to help deaf students learn English. This code represents oral English through hand movements.
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| Speechreading | The process of considering the situational context, facial expressions, gestures, body language, and lip and tongue movements to try to determine what a speaker is saying.
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