ぎゃっこう・ぎゃくこう

逆行

表記・読み：ぎゃっこう・ぎゃくこう

1. 1

   backward movement; reverse movement; going backwards; retrogression; going in the wrong direction; going against (e.g. the times); running counter to

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

   retrograde motion

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