Translation guide
Heavy hydrogen refers to deuterium, an isotope of hydrogen. In Japanese, it is primarily expressed using scientific terms.
The standard scientific term for the hydrogen isotope with one proton and one neutron.
The literal translation of 'heavy hydrogen', less common than the specific term.
Literal translation, rarely used in scientific contexts. May be understood but sounds unnatural.
This is a direct translation and not the standard term. Use 重水素 instead.
重い水素は普通の水素より重いです。
Heavy hydrogen is heavier than normal hydrogen.
The standard Japanese term for deuterium, used in chemistry and physics.
重水素は水素の同位体です。
Deuterium is an isotope of hydrogen.
Katakana loanword for deuterium, common in scientific contexts.
デューテリウムは核融合に使われます。
Deuterium is used in nuclear fusion.