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Ch. 11
Learners Who Are Deaf or Head of Hearing
| Term | Definition |
|---|---|
| Adventitiously Deaf | Deafness that happens after a person has already learned to hear and speak. |
| Audiologist | A professional who tests hearing and treats hearing problems. |
| Audiometric Zero | The softest sound a person with normal hearing can hear. |
| Auditory-Oral Approach | Teaching deaf or hard-of-hearing kids to use speech and lip reading. |
| Auditory-Verbal Approach | Focuses on teaching listening and speaking without relying on lip reading or sign language. |
| Auricle | The visible part of the ear outside the head. |
| Bicultural-Bilingual Approach | Teaching kids both sign language and the culture of the deaf community while learning spoken/written language. |
| Cochlea | The spiral-shaped part of the inner ear that turns sound into nerve signals. |
| Conductive Hearing Impairment | Hearing loss caused by problems in the outer or middle ear. |
| Congenital Cytomegalovirus (CMV) | A virus babies can get before birth that can cause hearing loss. |
| Congenitally Deaf | Being born deaf. |
| Connexin-26 Gene | A gene that, when mutated, is a common cause of inherited deafness. |
| Cued Speech | Hand cues used with speech to make sounds clearer for lip reading. |
| External Otitis | Infection of the outer ear canal, often called “swimmer’s ear.” |
| Fingerspelling | Using hand shapes to spell words, usually in sign language. |
| Homophenes | Words or sounds that look the same on the lips but sound different. |
| In Vitro Fertilization | A medical procedure to help with conception outside the body. |
| Incus | A tiny middle-ear bone (an ossicle) that helps transmit sound. |
| Malleus | Another middle-ear bone that helps move sound to the inner ear. |
| Mixed Hearing Impairment | Hearing loss caused by problems in both the outer/middle ear and the inner ear. |
| Oralism-Manualism Debate | Debate about teaching deaf kids mainly speech/lip reading (oralism) vs. sign language (manualism). |
| Ossicles | The three tiny bones in the middle ear (malleus, incus, stapes). |
| Otitis Media | Infection of the middle ear, common in kids. |
| Otoacoustic Emissions | Sounds the inner ear makes that can be measured to check hearing. |
| Oval Window | Membrane in the inner ear that passes vibrations from middle ear to cochlea. |
| Postlingual Deafness | Deafness that happens after learning language. |
| Prelingual Deafness | Deafness that happens before learning language. |
| Pure-Tone Audiometry | Hearing test using different tones to check hearing levels. |
| Sensorineural Hearing Impairment | Hearing loss caused by inner ear or auditory nerve problems. |
| Sign Language | A visual language using hand shapes, gestures, and facial expressions. |
| Signing English Systems | Ways of using signs to represent English grammar and words. |
| Simultaneous Communication | Using sign language and spoken language at the same time. |
| Speech Audiometry | A test that checks how well someone hears and understands speech. |
| Speechreading | Reading lips to understand speech. |
| Speech-Reception Threshold (SRT) | The softest level at which someone can understand speech 50% of the time. |
| Stapes | The third tiny middle-ear bone that helps transmit sound to the inner ear. |
| Text Telephones (TT) | Devices that let people who are deaf or hard-of-hearing send text over phone lines. |
| Total Communication | Using all methods of communication—speech, sign, fingerspelling, lip reading—together. |
| Transliteration | Converting spoken language into sign language for understanding. |
| Tympanic Membrane (Eardrum) | The membrane that vibrates when sound hits it. |
| Vestibular Mechanism | Parts of the inner ear that help with balance. |
| Video Relay Service (VRS) | A video phone service that lets deaf people communicate with hearing people through an interpreter. |