Language deprivation in children with hearing loss
Language deprivation in deaf and hard-of-hearing children is a delay in language development that occurs when sufficient exposure to language, spoken or signed, is not provided in the first few years of a deaf or hard of hearing child's life, often called the critical or sensitive period. Early intervention, parental involvement, and other resources all work to prevent language deprivation.
Source: Wikipedia — Language deprivation in children with hearing loss (CC BY-SA 4.0)