A lack or shortage
a vitamin deficiency
Deficiency of the enzyme adenosine deaminase; an inherited (autosomal recessive) disorder characterized by this, most commonly presenting as severe combined immunodeficiency.
Lack of sufficient iron (in an organism, the soil, diet, etc.); an instance of this.
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
Anaemia resulting from depletion of the body's stores of iron, typically associated with dietary insufficiency of iron and/or chronic loss of blood.
A disease in which there is a severe loss of the body’s cellular immunity, greatly lowering the resistance to infection and malignancy