Term: serum sickness: a delayed allergic reaction to the injection of an antiserum caused by an antibody reaction to an antigen in the donor serum
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: coelenterate: radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: pigweed: leaves sometimes used as potherbs; seeds used as cereal; southern United States to Central America; India and China
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: blue mockingbird: mockingbird of Mexico
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: united states post office: an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: stentor: any of several trumpet-shaped ciliate protozoans that are members of the genus Stentor
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: radiation: a radial arrangement of nerve fibers connecting different parts of the brain
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: biogeographical region: an area of the Earth determined by distribution of flora and fauna
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: posterior vein of the left ventricle: arises near the apex of the heart and empties into the coronary sinus
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: computer accessory: an accessory for a computer
Broader: allergy: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity | Unrelated: unorthodoxy: the quality of being unorthodox