Definition of 洞道 (とうどう)
とうどう
洞道
とうどう
toudou
noun
•
service tunnel (cables, gas, etc.)
Other readings:
洞道【どうどう】
Related Kanji
| 洞 | den, cave, excavation |
| 道 | road-way, street, district, journey, course, moral, teachings |