1A developing country; a nation in the process of industrialization and economic development (often abbreviated from 'developing country').
その奨学金プログラムは途上国の学生を支援するためのものだ。
That scholarship program is intended to support students from developing countries.
途上国ではインフラ整備が大きな課題になっている。
Infrastructure development is a major issue in developing countries.
国際会議で途上国支援の方針が話し合われた。
Policies for supporting developing countries were discussed at the international conference.