どうこうかくちょう 瞳孔拡張 LinksSentence search for 瞳孔拡張Sentence search for どうこうかくちょうKanji details for 瞳, 孔, 拡 and 張Edit in JMdict Noun1. pupil dilationSee also 瞳孔散大 Discussions Log in to talk about this word.