noun
concrete number; denominate number
Mathematics term for a number with a unit or label, as opposed to an abstract number. Contrasts with 無名数 (abstract number).
See also: 無名数
3メートルや5キログラムは名数である。
3 meters and 5 kilograms are concrete numbers.
noun
numbered group of related things or people
Used for well-known sets with a fixed number, such as the Seven Wonders of the World or the Three Great Calligraphers. Often appears in compound names.
世界七不思議は有名な名数だ。
The Seven Wonders of the World are a famous numbered group.
三筆は書道の名数である。
The Three Brushes are a numbered group in calligraphy.