油灰指甲 [－－－－]

Jyutping jau4 fui1 zi2 gaap3
Pinyin yóu huī zhǐ jiǎ

Definitions (Wiktionary)
  1. noun, Chinese, traditional
    onychomycosis; ringworm of the nails
    (syn.) 甲癣, 灰甲, 甲癬, 灰指甲, 甲真菌病