Was Does Hypersensitivity Mean?

1 : excessively or abnormally sensitive. 2 : abnormally susceptible physiologically to a specific agent (such as a drug or antigen) Other Words from hypersensitive Example Sentences Learn More About hypersensitive.

What does hypersensitivity mean in medical terms?

Definitions. Hypersensitivity reaction: a condition in which the normally protective immune system has a harmful effect on the body. Allergy: an abnormal immunological response to an otherwise harmless environmental stimulus (e.g., food, pollen, animal dander)

What is an example of hypersensitivity?

Type I reactions (i.e., immediate hypersensitivity reactions) involve immunoglobulin E (IgE)–mediated release of histamine and other mediators from mast cells and basophils. Examples include anaphylaxis and allergic rhinoconjunctivitis.