jmdict
2610920
Active
(id:
1057460)
2610920 jmdict A [id=1057460]
一増一減
いちぞういちげん
[1][n][fld=Buddh]
16,800,000-year period over which a human lifespan increases from ten years to 84,000 years (by one year per century) and then decreases back to ten (by one year per century)