Formal term used in economics, policy, and international development contexts. Often contrasted with 先進国 (developed country).
Support for developing countries is an important issue.
この会議では開発途上国の経済成長について話し合われた。
At this conference, the economic growth of developing countries was discussed.
Japan supports many developing countries.
Developed countries provide aid to developing countries.
The economic growth of developing countries has been remarkable.
先進国 refers to an economically developed nation, the direct opposite of 開発途上国 (a developing nation).
counter for countries
least developed country; LDC