示じ指しじしMeanings1nounindex finger; forefingerAnatomical term for the index finger; in everyday conversation, 人差し指 is more common.See also: 人差し指示じ指しは人ひと差さし指ゆびの医い学がく的てきな呼よび方かたです。示指 is the medical term for the index finger.示じ指しの骨こっ折せつは日にち常じょう生せい活かつに大おおきな影えい響きょうを与あたえる。A fracture of the index finger greatly affects daily life.