how can I translate the name of the typical Jewish symbol, in Italian called "Candelabro a sette bracci"?
Maybe seven branched candlestick? I also found candelabrum, but I don't know if it is correct.
"Menorah" is the correct term (as Tim has just taught us!), but it depends on who your readers are. If they are Jewish, I'm sure you can use that term, but if you have a wider audience it may be better to say "seven-branched candelabrum", which would be understood by everyone.