いちらんせい 一卵性 LinksSentence search for 一卵性Sentence search for いちらんせいKanji details for 一, 卵 and 性Edit in JMdict Noun which may take the genitive case particle 'no', Noun1. identical (of twins); monozygotic; unioval; uniovularMedicine, See also 二卵性 Discussions Log in to talk about this word.