Asthma in Children Glossary of Terms

The following are health and medical definitions of terms that appear in the Asthma in Children article.

Acetaminophen: A nonaspirin pain reliever or analgesic. Acetaminophen may be given alone t...

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Acute: Of abrupt onset, in reference to a disease. Acute often also connotes an illness th...

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Agonist: A substance that acts like another substance and therefore stimulates an action. ...

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Airway: The path that air follows to get into and out of the lungs. The mouth and nose are...

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Airway obstruction: Partial or complete blockage of the breathing passages to the lungs. C...

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

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Allergy shots: See Allergy desensitization.

Antagonist: A substance that acts against and blocks an action. Antagonist is the opposite...

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

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

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Asthmatic: 1. Pertaining to asthma as, for example, asthmatic bronchitis.
...

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Bacteria: Single-celled microorganisms that can exist either as independent (free-living) ...

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Baseline: Information or data gathered at the beginning of a period from which variations ...

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Beta-2 agonist: See: Beta-agonist.

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

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Bronchi: The plural of bronchus.

Bronchitis: Inflammation and swelling of the bronchi. Bronchitis can be acute or chronic.

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

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Chest X-ray: A type of X-ray commonly used to detect abnormalities in the lungs. A chest X...

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Chronic: In medicine, lasting a long time. A chronic condition is one that lasts 3 months ...

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Chronic illness: An illness that lasts 3 months or more.

Circadian: Refers to events occurring within the span of a full 24-hour day, as in a circa...

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Circulation: In medicine, the movement of fluid through the body in a regular or circuitou...

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Conditioning: 1) Exercise and practice to build the body up for either improved normal pe...

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Congestion: An abnormal or excessive accumulation of a body fluid. The term is used broadl...

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Cortisone: A naturally occurring adrenocorticoid hormone that is produced in minute amount...

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Cough: A rapid expulsion of air from the lungs, typically in order to clear the lung airwa...

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Cystic fibrosis: A common grave genetic disease that affects the exocrine glands and is ch...

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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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Diagnosis: 1 The nature of a disease; the identification of an illness. 2 A ...

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

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Epinephrine: Also known as adrenaline. A substance produced by the medulla inside of the a...

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Esophagus: The tube that connects the pharynx (throat) with the stomach. The esophagus lie...

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Exercise-induced asthma: Asthma triggered by vigorous physical activity. It primarily affe...

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FEV1: Forced Expiratory Volume in the first second. The volume of air that can be forced o...

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Flare: 1. an exacerbation of a chronic disease. Sometimes referred to as a flare-up, a fla...

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Flu: Flu is a colloquialism for influenza. The flu is an acute respiratory illness caused ...

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Forced expiratory volume: The volume of air that can be forced out taking a deep breath, a...

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Fungi: Plural of fungus.

Gastroesophageal: Pertaining to both the stomach and the esophagus, as in the gastroesopha...

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Gastroesophageal reflux: The return of stomach contents back up into the esophagus This fr...

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GERD: Gastroesophageal reflux disease.

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

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Heartburn: An uncomfortable feeling of burning and warmth occurring in waves rising up be...

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HEPA: Acronym that stands for High-Efficiency Particulate Air and for High-Efficiency Part...

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

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

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Humidifier: A machine that puts moisture into the air. Humidified air makes it easier to b...

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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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Indicate: In medicine, to make a treatment or procedure advisable because of a particular ...

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Infant: A young baby, from birth to 12 months of age.

Infection: The invasion and multiplication of microorganisms such as bacteria, viruses, an...

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

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Laboratory: A place for doing tests and research procedures, and for preparing chemicals a...

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Leukotriene: One of a group of chemicals produced by the body that accompanies inflammatio...

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Lungs: The lungs are a pair of breathing organs located with the chest which remove carbon...

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Mechanical ventilation: Use of a machine called a ventilator or respirator to improve the ...

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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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Mucus: A thick fluid that is produced by the lining of some organs of the body.

Muscle: Muscle is the tissue of the body which primarily functions as a source of power. T...

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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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Nurse: 1) A person trained, licensed, or skilled in nursing. 2) To feed an infant at the ...

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Obstruction: Blockage of a passageway. See, for example: Airway obstruction; Intestinal o...

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Onset: In medicine, the first appearance of the signs or symptoms of an illness as, for ex...

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Oxygen: The odorless gas that is present in the air and necessary to maintain life. Oxygen...

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Pain: An unpleasant sensation that can range from mild, localized discomfort to agony. Pa...

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Pediatric: Pertaining to children.

Pneumonia: Inflammation of one or both lungs, with dense areas of lung inflammation. Pneum...

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

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

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Pulmonary: Having to do with the lungs.

Radiograph: In medicine, an X-ray or a film produced through X-ray.

Recurrent: Appearing or occurring again. For example, a recurrent fever is a fever that ha...

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Reflux: The term used when liquid backs up into the esophagus from the stomach.

Respiratory: Having to do with respiration.

Respiratory syncytial virus: A virus that causes mild respiratory infections, colds, and c...

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Runny nose: The production of extra mucus by the nose. Rhinorrhea is the medical term for ...

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Shortness of breath: Difficulty in breathing. Medically referred to as dyspnea. Shortness ...

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Sinus: 1. An air-filled cavity in a dense portion of a skull bone. The sinuses decr...

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Sleep: The body's rest cycle.

Spasm: A brief, automatic jerking movement. A muscle spasm can be quite painful, with the ...

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Spirometry: A test of the air capacity of the lung. The test utilizes a machine called a s...

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Stomach: The digestive organ that is located in the upper abdomen, under the ribs. The upp...

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

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Symptom: Any subjective evidence of disease. In contrast, a sign is objective. Blood comin...

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Systemic: Affecting the entire body. A systemic disease such as diabetes can affect the wh...

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

Tobacco: A South American herb (Nicotiana tabacum) whose leaves contain 2 to 8 percent nic...

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Treadmill: A machine with a moving strip on which one walks without moving forward. A trea...

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Trigger: Something that either sets off a disease in people who are genetically predispose...

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Ventilation: The exchange of air between the lungs and the atmosphere so that oxygen can b...

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Viral: Of or pertaining to a virus. For example, if a person has a viral rash, the rash wa...

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Viral infection: Infection caused by the presence of a virus in the body. Depending on th...

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Virus: A microorganism that is smaller than a bacterium that cannot grow or reproduce apar...

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Vital: Necessary to maintain life. For example, breathing is a vital function.

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

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X-ray: High-energy radiation with waves shorter than those of visible light. X-ray is used...

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Medical Dictionary