猝睡症 Traditional form: 猝睡症 Pinyin (reading): cùshuìzhèng Definitions: narcolepsy Characters: 猝 - sudden, abrupt 睡 - to sleep, to doze 症 - ailment, disease, illness Traditional characters: 猝 - sudden, abrupt 睡 - to sleep, to doze 症 - ailment, disease, illness