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nounany substance that can cause an allergytype of:
Definition that contains allergen
- allergy hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity
- ambrosia any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
- ragweed any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
- erythema multiforme a red rash caused by hypersensitivity to a drug or disease or other allergen
- subcutaneous test a form of skin test in which the suspected allergen is injected into the skin
- ragweed pollen pollen of the ragweed plant is a common allergen
- sensitize make sensitive to a drug or allergen
- hypersensitivity reaction an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock
- allergic reaction hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity
- intradermal test a form of skin test in which the suspected allergen is injected into the skin