ごかん 後漢 LinksSentence search for 後漢Sentence search for ごかんSentence search for こうかんKanji details for 後 and 漢Edit in JMdict Noun1. Later Han dynasty (of China; 25-220 CE); Eastern Han dynastyHistorical term, esp. ごかんNoun2. Later Han dynasty (of China; 947-950 CE)Historical term, See also 五代 ごだい, esp. こうかんOther forms後漢 【こうかん】 Discussions Log in to talk about this word.