ちきゅうるいじせいしひょう 地球類似性指標 LinksSentence search for 地球類似性指標Sentence search for ちきゅうるいじせいしひょうKanji details for 地, 球, 類, 似, 性, 指 and 標Edit in JMdict Noun1. Earth Similarity Index; ESI Discussions Log in to talk about this word.