たいか

退化

表記・読み：たいか

1. 1

   degeneration; retrogression; atrophy

   名詞noun or participle which takes the aux. verb suru自動詞biology
2. 2

   regression (e.g. of society); deterioration; degeneration

   名詞noun or participle which takes the aux. verb suru自動詞