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1. Oxford American Dictionary

   minus sign

   • IPA[ˈmīnəs ˌsīn]

   • n.
     the symbol −, indicating subtraction or a negative value.

   • noun: minus sign, plural noun: minus signs

2. • 更多解釋

   minus sign

   • n.
     the symbol −, indicating subtraction or a negative value.

   Oxford Dictionary