plus sign

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Maths

ˈplus sign (also plus especially British English) noun [countable]  HMthe sign (+), showing that you should add two or more numbers together, or that a number is more than zero 加号；正号

ˈplus sign nounChineseSyllable  

plus sign
ˈplus sign (also plus especially British English) noun [countable]
the sign (+), showing that you should add two or more numbers together, or that a number is more than zero