1

I'm reading a book and I saw there a sentence with the word "fold" but I am not sure about the meaning of this word in the context:

Overall, glia outnumber neurons in the mammalian brain 10-to 50-fold.

Does this "fold" mean like "times"?

2

Yes, it does. When something changes from 1 to 100, that's a hundredfold. 300 to 900 is threefold.

Generally, if a number is followed with -fold, it means [number]-times.

Hopes this helps.

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