noun
San'yō Shinkansen
The high-speed railway line connecting Shin-Osaka and Hakata, operated by JR West.
山陽新幹線で広島まで行きます。
I will go to Hiroshima by San'yō Shinkansen.
The Tōkaidō Shinkansen connects Tokyo and Shin-Osaka; the San'yō Shinkansen continues westward from Shin-Osaka to Hakata.
Compound of 山陽 (San'yō, the region along the Seto Inland Sea) and 新幹線 (Shinkansen, bullet train).