a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
同义词：rheniumatomic number 75
ancient Egyptian sun god with the head of a hawk; a universal creator; he merged with the god Amen as Amen-Ra to become the king of the gods
同义词：Ra
the syllable naming the second (supertonic) note of any major scale in solmization