はっせい
Meanings
Noun
1. 新しい物事が生まれたり起こったりすること。
2. 多細胞生物の個体や器官が形成される過程。
生物学
Pitch accent
っせい
Used in vocabulary (29 in total)
source; origin
spontaneous generation; abiogenesis; natural occurrence; spontaneous occurrence
explosive increase (in number of pests); (severe) outbreak or upsurge of pests
Examples (25 in total)
An epidemic has broken out.
An epidemic disease broke out.
AIDS has broken out.