半減期

Reading

Kana: はんげんき

Romaji: hangenki

Definition

noun

1

half life

(Physics terminology) (Chemistry term)

Kanji

半

Readings: ハン、 なか.ば

Meanings: half, middle, odd number, semi-, part-

減

Readings: ゲン、 へ.る、 へ.らす

Meanings: dwindle, decrease, reduce, decline, curtail, get hungry

期

Readings: キ、 ゴ

Meanings: period, time, date, term