I studied physics in Germany but never heard this word. https://en.wikipedia.org/wiki/Whole_number https://en.wikipedia.org/wiki/Whole_number clearly answers th

I studied physics in Germany but never heard this word. https://en.wikipedia.org/wiki/Whole_number https://en.wikipedia.org/wiki/Whole_number clearly answers the raised question here, as the word seems to either mean "integer" or "natural number", two concepts with the obvious different meaning I am familiar with.