• n. 缺陷，缺點；缺乏；不足的數額

de-, 不，非，使相反。-fic, 做，詞源同defect, efficient. 即沒做好，缺陷。

deficiency (n.)

1630s, from deficience (mid-15c.) + -cy; or from Late Latin deficientia, from deficientem (see deficient).

1. Symptoms of anaemia include weakness, fatigue and iron deficiency.

貧血的症狀包括虛弱、疲勞和缺鐵。

來自柯林斯例句

2. They did blood tests on him for signs of vitamin deficiency.

他們給他驗了血，以檢查是否有維生素缺乏的跡象。

來自柯林斯例句

3. AIDS stands for Acquired Immune Deficiency Syndrome.

AIDS是獲得性免疫缺損綜合征的縮寫。

來自柯林斯例句

4. Vitamin deficiency in the diet can cause illness.

飲食中缺乏維生素可能導致疾病。

來自《權威詞典》

5. During the war children suffered from a deficiency of food.

戰爭期間孩子們遭受缺乏食物之苦.

來自《簡明英漢詞典》