noun
industrialized nation; industrialised nation
Refers to a country whose economy is primarily based on industry and manufacturing.
日本はアジアで最初の工業国になった。
Japan became the first industrialized nation in Asia.
工業国は温室効果ガスの排出量が多い傾向がある。
Industrialized nations tend to have high greenhouse gas emissions.
農業国 (agricultural nation) is the opposite, referring to a country whose economy relies mainly on agriculture.
Compound of 工業 (こうぎょう, 'industry') + 国 (こく, 'country').