| 单词 | deficiency | 
| 释义 | Word Frequency deficiency(dɪˈfɪʃənsɪ) nounWord forms:  plural -cies 1.  the state or quality of being deficient  2.  a lack or insufficiency; shortage  3.   another word for deficit  4.  biology the absence of a gene or a region of a chromosome normally present | 
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