環かん境きょう問もん題だい専せん門もん家か

noun

environmental expert; environmental specialist

Refers to a person with professional expertise in environmental issues. Often used in formal or academic contexts.

• 彼かれは環かん境きょう問もん題だい専せん門もん家かとして国こく際さい会かい議ぎに参さん加かした。

  He participated in the international conference as an environmental expert.