economic
/ˌiːkəˈnɒmɪk/adjective
1- of or relating to economics or the economy（与）经济学（有关）的; （与）经济（有关）的, 经济上的：
the government's economic policy
政府的经济政策
pest species of great economic importance.
具有严重经济影响的害虫种类。
1.1
- justified in terms of profitability有利可图的, 有收益的, 有赢利的：
many organizations must become larger if they are to remain economic.
许多机构要想保持赢利就必须扩大。
1.2
- requiring fewer resources or costing less money节约的, 省俭的：
solar power may provide a more economic solution.
利用太阳能可能是一个更节约的办法。
1.3
- (of a subject) considered in relation to trade, industry, and the creation of wealth（学科）与经济相关的：
economic history.
经济史。
词源
late Middle English: via Old French and Latin from Greek oikonomikos, from oikonomia （see ECONOMY）. Originally a noun, the word denoted household management or a person skilled in this, hence the early sense of the adjective （late 16th cent.） 'relating to household management'. Modern senses date from the mid 19th cent.