See Individualized Education Program.
Idiopathic
Having an unknown cause. If the doctors don’t know what caused your hearing loss, they say you have idiopathic hearing loss.
IDEA
See Individuals with Disabilities Education Act.
Hz
The abbreviation for Hertz. (See Hertz).
Hypoacusis
(See also Hypacusis.) Reduced hearing. Hearing loss.
Hypnopompic
The occurrence of visions or dreams (including auditory hallucinations) during the drowsy awakening state following sleep. (See also Hypnagogic.)