A lack or shortage
a vitamin deficiency
A disease caused by the lack of some essential or important element in the diet, usually a particular vitamin or mineral
A payment made, typically by a government body, to cover a financial deficit incurred in the course of an activity such as farming or education
Another term for immunodeficiency.
The condition of having a mental disability
dated and offensive: express otherwise, e.g. in terms of ‘learning difficulties’
A disease in which there is a severe loss of the body’s cellular immunity, greatly lowering the resistance to infection and malignancy