noun
industrialized country; developed industrial nation
Refers to countries with advanced industrial economies. Often used in economic, political, or environmental contexts.
工業先進国は温室効果ガスの排出削減に取り組んでいる。
Industrialized countries are working to reduce greenhouse gas emissions.
日本はアジアで最初の工業先進国となった。
Japan became the first industrialized country in Asia.
Compound of 工業 (industry) + 先進 (advanced) + 国 (country). A straightforward modern term with no obscure historical derivation.