異い歯し性せいいしせいMeanings1noun which may take the genitive case particle 'no', nounheterodontTechnical term in zoology and dentistry describing animals that have teeth of different shapes (incisors, canines, molars). Antonym: 同歯性 (homodont).Antonyms: 同歯性哺ほ乳にゅう類るいは異い歯し性せいの動どう物ぶつである。