Definition of 回転軸 (かいてんじく)
かいてんじく
                        回転軸
かいてんじく
kaitenjiku
noun
•
        
axis of revolution
Related Kanji
| 回 | -times, round, game, revolve, counter for occurrences | 
| 転 | revolve, turn around, change | 
| 軸 | axis, pivot, stem, stalk, counter for book scrolls |