prosopagnosia
noun [ U ] medical specialized uk/ˌprɒs.əʊ.pæɡˈnəʊz.i.ə/ us/ˌprɑː.soʊ.pæɡˈnoʊ.ʒə/
面部失认（症）
the condition of not being able to recognize the faces of people who are known to you, often caused by damage to the brain
Compare: agnosia