原發性進行性失語 [ㄩㄢˊ ㄈㄚ ㄒㄧㄥˋ ㄐㄧㄣˋ ㄒㄧㄥˊ ㄒㄧㄥˋ ㄕ ㄩˇ; yuan2 fa1 xing4 jin4 xing2 xing4 shi1 yu3] primary progressive aphasia (PPA), speech disorder (sometimes related to dementia) ◄ ►