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三重水素 (sanjuusuiso) Japanese meaning: tritium | Kotomora

三さん重じゅう水すい素そ

さ

ん

じゅ

う

す

い

そ

Meanings

1

tritium

Scientific term for the radioactive isotope of hydrogen with mass number 3. Often referred to by the loanword トリチウム.

See also: トリチウム

三さん重じゅう水すい素そは水すい素その放ほう射しゃ性せい同どう位い体たいで

ある

。

Tritium is a radioactive isotope of hydrogen.

核かく融ゆう合ごう炉ろでは三さん重じゅう水すい素そが燃ねん料りょうとして使つかわれる。

Tritium is used as fuel in fusion reactors.

Kanji

三three
重heavy, important, esteem
水water
素elementary, principle, naked

Related words

トリチウム
Common loanword for tritium; 三重水素 is the native Japanese term used mainly in scientific contexts.
重じゅう水すい素そ
Deuterium (hydrogen-2); 三重水素 is tritium (hydrogen-3).

Built from

三さん重じゅう+水すい素そ

Etymology

Compound of 三重 (さんじゅう, 'triple') and 水素 (すいそ, 'hydrogen'), referring to the mass number 3 of tritium.