透水度River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 透水係数(とうすいけいすう)River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 透磁率(tōjiritsu)River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 物質透過性Engineering and Science Technical Dictionary (James Friend) ; 浸透能力River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 浸水率(shinsuiritsu)Engineering and Science Technical Dictionary (James Friend)