defective

adj.有缺陷的；[语]不完全变化的

n.有缺陷的人

He is mentally defective. 他智力不健全。

Please return defective merchandise in three days. 请于三日内退还缺陷的商品。

"Ought" is a defective verb. "ought"是变化不完全的动词。

We decided to make all the defective sheet up. 我们决定全部重印有缺陷的页码。

Evidence is accumulating that a defective gene may be responsible for this disease. 越来越多的证据表明该疾病是由一种有缺陷的基因引起的。

n.次品；身心不健全的人

名词defective的复数形式.

n.合格品(良品)