プログレッシブ和英中辞典(第３版)の解説
じっすう【実数】
1 〔実際の数〕the real [actual] number
- 5万人来たというが実数は3万人に過ぎなかった
Fifty thousand people were reported to have turned out, but the actual number was only thirty thousand.
2 〔数学で〕a real number