Definition of 伏長 (ふせなが)
ふせなが
                        伏長
ふせなが
fusenaga
noun
•
                
going (e.g. of a flight of stairs), length
Other readings:
                伏せ長【ふせなが】
                Related Kanji
| 伏 | prostrated, bend down, bow, cover, lay (pipes) | 
| 長 | long, leader, superior, senior |