名詞 dualism:

1. the doctrine that reality consists of two basic opposing elements, often taken to be mind and matter (or mind and body), or good and evil

du.al.ism

n.（名詞）
The condition of being double; duality.
兩重性：有兩部分的狀態(tài)；二元性
Philosophy The view that the world consists of or is explicable as two fundamental entities, such as mind and matter.
【哲學】 二元論：認為世界由兩個基本實體組成或能由兩個基體實體解釋的觀點，如思維與物質
Psychology The view that the mind and body function separately, without interchange.
【心理學】 二元論：認為思維與肉體分別行使自己的功能，互相不轉化的觀點
Theology
【神學】
The concept that the world is ruled by the antagonistic forces of good and evil.
二元論：認為世界由兩個相互對立的力量，善與惡控制的觀念
The concept that human beings have two basic natures, the physical and the spiritual.
二元論：認為人有兩個基本屬性，物質的和精神的屬性的觀念

【引伸】
du.alist
n.（名詞）
du.alis.tic
adj.（形容詞）
du.alis.tically
adv.（副詞）