Definition of 古生界 (こせいかい)
こせいかい
古生界
こせいかい
koseikai
noun
•
Paleozoic group
Related Kanji
| 古 | old |
| 生 | life, genuine, birth |
| 界 | world, boundary |
| 古 | old |
| 生 | life, genuine, birth |
| 界 | world, boundary |
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