合ごう成せい石せき油ゆ

noun

synthetic petroleum

Technical term for petroleum produced through chemical synthesis rather than extracted from crude oil.

• 合ごう成せい石せき油ゆは天てん然ねんの原げん油ゆの代だい替たいとして研けん究きゅうされている。

  Synthetic petroleum is being researched as an alternative to natural crude oil.