monogyny

名词 monogyny:

1. having only one wife at a time

mo.nog.y.ny

n.（名词）
The practice or condition of having only one wife at a time.
一妻制：一次只有一个妻子的做法或状态

【引伸】
monog.ynist
n.（名词）
monog.ynous
adj.（形容词）