退化
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Noun meaning a decline or backward movement in quality, function, or evolution. Example: 『その種は退化しました』 (sono shu wa taika shimashita, 'That species degenerated').
Theme
User is discussing evolutionary biology with their professor, Dr. Tanaka, in a university lab.
退化
たいか
degeneration, retrogression
Advanced ExpansionAbstract Concepts
Memory Hook
Think of 'degeneration' as going 'backwards' — like a 'taika' (退化 taika) that makes things worse over time. 'Taika' → 退化 (taika, 'degeneration').
Cultural Note
『退化』 (taika, 'degeneration') is used in scientific contexts, such as biology to describe the loss of function in organisms, or in social discussions about cultural decline.
Forms
Base: 退化Noun meaning a decline or backward movement in quality, function, or evolution. Example: 『その種は退化しました』 (sono shu wa taika shimashita, 'That species degenerated').