歯し根こんしこんFreq.FrequencyTop 50,000Meanings1nountooth root; root of a toothAnatomical term for the part of a tooth embedded in the jawbone.歯し根こんが炎えん症しょうを起おこしている。The tooth root is inflamed.歯し根こんの治ち療りょうには時じ間かんがかかる。Treatment of the tooth root takes time.