deficiency

柯林斯词典

1. N-VAR Deficiencyin something, especially something that your body needs, is not having enough of it. 缺乏; 不足
They did blood tests on him for signs of vitamin deficiency. 他们给他做了血检看是否有缺乏维生素的迹象。
2. N-VAR A deficiency that someone or something has is a weakness or imperfection in them. 缺点; 缺陷[正式]
The most serious deficiency in NATO's air defence is the lack of an identification system to distinguish friend from foe. 北约防空的最大缺陷就是缺乏能够辨认敌友的识别系统。

Severe iron deficiency can cause developmental delay and growth retardation .
The teacher even implied that he was suffering from some kind of mental deficiency.
The blood tests revealed a deficiency in certain key minerals and vitamins .
There were clear deficiencies in the standard of service provided .
Despite his deficiencies as a husband , he was a good father to his children .