language attrition; linguistic attrition
Linguistics term for the gradual loss of a native or first language, often due to lack of use or contact with another dominant language.
海外に長く住んでいると、母語の言語喪失が起こることがある。
When living abroad for a long time, language attrition of one's native language can occur.
言語喪失の研究
hypophrasia
Medical term for a reduction in speech output, often due to neurological conditions. Rare outside clinical contexts.
Research on language attrition is closely related to second language acquisition.
This patient is showing symptoms of hypophrasia after brain injury.
言語退化 is a broader term for language deterioration, while 言語喪失 specifically refers to attrition of an already acquired language.
失語症 is aphasia, a language disorder caused by brain damage, whereas 言語喪失 (hypophrasia) is a reduction in speech output, often a symptom of a broader condition.
Compound of 言語 (language) and 喪失 (loss). The term is a direct translation of the English 'language attrition' and 'hypophrasia' in their respective fields.