Allergy Shots Glossary of Terms

The following are health and medical definitions of terms that appear in the Allergy Shots article.

Abate: To lessen or decrease. For example, after a boil is lanced, the pus can drain and t...

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Allergen: A substance that can cause an allergic reaction. Common allergens include ragwee...

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Allergic reaction: The hypersensitive response of the immune system of an allergic indiv...

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Allergic rhinitis: Medical term for hay fever, an allergic reaction that mimics a chronic ...

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Allergy: A misguided reaction to foreign substances by the immune system, the body system ...

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Allergy shots: See Allergy desensitization.

Anaphylactic shock: A widespread and very serious allergic reaction. Symptoms include di...

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Anaphylaxis: Allergic reaction. In severe cases, this can include potentially deadly anap...

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Antibody: An immunoglobulin, a specialized immune protein, produced because of the introdu...

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Antigen: A substance that the immune system perceives as being foreign or dangerous. The b...

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Antihistamines: Drugs that combat the histamine released during an allergic reaction by bl...

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Asthma: A common lung disorder in which inflammation causes the bronchi to swell and narro...

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Blood pressure: The blood pressure is the pressure of the blood within the arteries. It is...

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Brain: The portion of the central nervous system that is located within the skull. It func...

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Breathing: The process of respiration, during which air is inhaled into the lungs through ...

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Chest: The area of the body located between the neck and the abdomen. The chest contains t...

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Dander: Tiny scales shed from human or animal skin or hair. Dander floats in the air, sett...

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Dizziness: Painless head discomfort with many possible causes including disturbances of ...

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Emergency department: The department of a hospital responsible for the provision of medica...

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Essential: In medicine, of unknown cause, as in essential hypertension (high blood pressur...

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Fever: Although a fever technically is any body temperature above the normal of 98.6 degr...

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Glaucoma: A common eye condition in which the fluid pressure inside the eyes rises becaus...

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Hay fever: A seasonal allergy to airborne particles characterized by itchy eyes, runny nos...

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Heart: The muscle that pumps blood received from veins into arteries throughout the body. ...

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Herbal: 1. An adjective, referring to herbs, as in an herbal tea.
2. A...

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High blood pressure: A repeatedly elevated blood pressure exceeding 140 over 90 mmHg. Chro...

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Histamine: A substance that plays a major role in many allergic reactions, dilating blood ...

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Immune: Protected against infection, usually by the presence of antibodies.

Immune response: Any reaction by the immune system. For example, poison ivy can cause an i...

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Immune system: A complex system that is responsible for distinguishing a person from every...

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Immunoglobulin: A protein produced by plasma cells and lymphocytes and characteristic of t...

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Immunoglobulin E: A class of immunoglobulins that includes the antibodies that are importa...

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Immunology: The study of all aspects of the immune system, including its structure and fun...

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Immunotherapy: Treatment to stimulate or restore the ability of the immune (defense) syst...

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Inflammation: A localized reaction that produces redness, warmth, swelling, and pain as a ...

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Internal medicine: The medical specialty dedicated to the diagnosis and medical treatment ...

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Low blood pressure: Any blood pressure that is below the normal expected for an individua...

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Maintenance therapy: Treatment designed to help the original primary treatment to succeed....

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Medical history: 1. In clinical medicine, the patient's past and present which may ...

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Medical school: A school with a curriculum leading to a medical degree. The mission of eve...

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Mold: One of a large group of fungi that can proliferate on food or in moist areas. Househ...

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Nasal: Having to do with the nose.

Nose: The external midline projection from the face. The purpose of the nose is to warm, c...

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PA-C: Physician Assistant - Certified.

Pharmacy: A location where prescription medications are sold. A pharmacy is constantly sup...

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Pollen: Small, light, dry protein particles from trees, grasses, flowers, and weeds that m...

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Pregnancy: The state of carrying a developing embryo or fetus within the female body. Thi...

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Pregnant: The state of carrying a developing fetus within the body.

Prescription: A physician's order for the preparation and administration of a drug or dev...

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Referral: The recommendation of a medical or paramedical professional. If you get a refer...

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Regimen: A plan or a regulated course, such as a diet, exercise, or treatment, that is des...

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Rhinitis: Irritation of the nose.

Sensitivity: 1. In psychology, the quality of being sensitive. As, for example, sen...

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Serum: The clear liquid that can be separated from clotted blood. Serum differs from plas...

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Shock: In medicine, a critical condition that is brought on by a sudden drop in blood flow...

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Steroid: One of a large group of chemical substances classified by a specific carbon struc...

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Stuffy nose: : The presence of increased secretions and mucus in the nasal passages, most ...

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Substance: 1. Material with particular features.
2. The material that...

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Therapy: The treatment of disease. Therapy is synonymous with treatment.

Throat: The throat is the anterior (front) portion of the neck beginning at the back of th...

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Vitamins: The word "vitamin" was coined in 1911 by the Warsaw-born biochemist Casimir Funk...

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Wheezing: A whistling noise in the chest during breathing. Wheezing occurs when the airway...

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