Definitions

1. noun

a lack or insufficiency of something, especially a nutrient or essential substance

“The doctor told her that she had a deficiency in iron and needed to take supplements.”

2. noun

a failure to meet a required standard or level

“The company’s low sales figures were due to a deficiency in marketing strategy.”

3. noun

a lack or insufficiency of something in a person or animal, especially a nutrient or essential substance

“The vet diagnosed the dog with a deficiency in vitamin D and recommended a diet change.”

4. verb

to lack or be short of something, especially a nutrient or essential substance

“The plant deficiency in water caused its leaves to wilt and turn brown.”