HELIUM-3
Meaning of HELIUM-3 in English
¦ ̷ ̷ ̷ ̷ ̷ ̷ ˈ ̷ ̷ noun
Etymology: helium + 3 , mass number of the isotope
: the isotope of helium having the mass number three
Webster's New International English Dictionary.
Новый международный словарь английского языка Webster.
2012