組くみ立たて単たん位いくみたてたんいMeanings1nounderived unitTechnical term in physics and engineering for a unit expressed as a combination of base units, such as m/s or m³.速はやさの単たん位い「メートル毎まい秒びょう」は組くみ立たて単たん位いの一ひとつ