noun
non-negative integer; whole number; natural number
Mathematics term for integers greater than or equal to zero. In some contexts, 'natural number' may exclude zero, but this term explicitly includes it.
See also: 整数
非負整数とは、0以上の整数のことです。
A non-negative integer is an integer greater than or equal to zero.
この問題では、解は非負整数でなければならない。
In this problem, the solution must be a non-negative integer.
Compound of 非 (non-), 負 (negative), and 整数 (integer). A straightforward modern mathematical coinage.