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3)

世代交代せだいこうたい

#39,321
せだいこうたい
Meaning
    1. ①
      biology
      alternation of generations; heterogenesis
    2. ②
      change of generations; emergence of a new generation
    1. ①
      EN Alternation of generations (also known as metagenesis) is a term primarily used to describe the life cycle of plants (taken here to mean the Archaeplastida).
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Kanji
世 セイ generation, world, society 代 ダイ substitute, change, convert 交 コウ mingle, mixing, association 代 ダイ substitute, change, convert
Forms
6)

世代宇宙船せだいうちゅうせん

#231,891
せだいうちゅうせん
Meaning
    1. ①
      generation ship (science fiction); interstellar ark
    1. ①
      EN A generation ship, or generation starship, is a hypothetical type of interstellar ark starship that travels at sub-light speed.
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Kanji
世 セイ generation, world, society 代 ダイ substitute, change, convert 宇 ウ eaves, roof, house 宙 チュウ mid-air, air, space 船 セン ship, boat
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