euthenics

名词 euthenics:

1. the study of methods of improving human well-being and efficient functioning by improving environmental conditions

eu.then.ics

n.(used with a sing. verb)（名词）（与单数动词连用）
The study of the improvement of human functioning and well-being by improvement of living conditions.
优境学：一门通过改善生存环境来改善人种的学科

来源：
From Greek euthenein [to flourish]
源自 希腊语 euthenein [使繁荣]

【引伸】
euthen.ist
n.（名词）