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Kids' Medical Dictionary
Symptoms, inhaler, tonsillectomy — what do all those medical words mean? Check out our easy-to-read definitions.
- What Are Abdominals?
- What Are Adenoids?
- What Are Airways?
- What Are Allergy Shots (Immunotherapy)?
- What Are Anterior Cruciate Ligament (ACL) Injuries?
- What Are Antibiotics?
- What Are Antihistamines?
- What Are Arteries and Veins?
- What Are Astringents?
- What Does Alignment Mean?
- What Does Amputate Mean?
- What Does Autoimmunity Mean?
- What Is AIDS?
- What Is Alzheimer's Disease?
- What Is Anorexia Nervosa?
- What Is Lou Gehrig's Disease (ALS)?
- What's Acne?
- What's Addiction?
- What's Adenovirus?
- What's Aerobic Activity?
- What's Allergy-Triggered Asthma?
- What's Anemia?
- What's Anesthesia?
- What's Animal Dander?
- What's Appendicitis?
- What's Arthritis?
- What's Asthma?
- What's Astigmatism?
- What's Autism?
- What's an Abrasion?
- What's an Abscess?
- What's an Airway Obstruction?
- What's an Allergen?
- What's an Allergist?
- What's an Allergy?
- What's an Asthma Action Plan?
- What's an Asthma Flare-Up?
- What's the Anus?
- What's the Appendix?
- What Are Bacteria?
- What Are Beta Cells?
- What Are Blood Banks?
- What Are Blood Glucose Levels?
- What Are Blood Types?
- What Are Body Types?
- What Are Boogers?
- What Are Bowels?
- What Are Braces?
- What Are Bronchial Tubes?
- What Are Bruises?
- What Are First-Degree Burns?
- What Are Second-Degree Burns?
- What Are Third-Degree Burns?
- What Is Bell's Palsy?
- What Is Blood Pressure?
- What Is Bone Marrow?
- What Is Breast Cancer?
- What Is Bronchiolitis?
- What Is Bronchoconstriction?
- What Is Bruxism?
- What's Borborygmus?
- What's a Biopsy?
- What's a Blackhead?
- What's a Blood Glucose Meter?
- What's a Bolus?
- What's a Bronchodilator?
- What Are Canine Teeth?
- What Are Canker Sores?
- What Are Carbohydrates?
- What Are Caries?
- What Are Cells?
- What Are Certified Diabetes Educators (CDEs)?
- What Are Chromosomes?
- What Are Cones?
- What Are Contact Lenses?
- What Are Corneas?
- What Are Corticosteroids?
- What Are Long-Term Control Medicines?
- What Does Chronic Mean?
- What Does Contagious Mean?
- What Is Cancer?
- What Is Carbohydrate Counting?
- What Is Cartilage?
- What Is Cellulitis?
- What Is Cerebral Palsy?
- What Is Cerumen?
- What Is Chemotherapy?
- What Is Coxsackievirus?
- What Is Cystic Fibrosis?
- What Is a Complete Blood Count (CBC)?
- What Is the Cerebellum?
- What Is the Cerebral Cortex?
- What's Congestion?
- What's Conjunctivitis?
- What's Constipation?
- What's a CT Scan/CAT Scan?
- What's a Cardiologist?
- What's a Cast?
- What's a Cleft Lip?
- What's a Cleft Palate?
- What's a Cochlea?
- What's a Contusion?
- What's a Cough?
- What's a Cyst?
- What Are Decongestants?
- What Are Depressants?
- What Are Disinfectants?
- What Are Dust Mites?
- What Does Diagnosis Mean?
- What Does Dislocation Mean?
- What Is DNA?
- What Is Down Syndrome?
- What's Dandruff?
- What's Dehydration?
- What's Depression?
- What's Dermatitis?
- What's Diabetes?
- What's Diarrhea?
- What's Dyslexia?
- What's a Dermatologist?
- What's a Dietitian?
- What's the Diaphragm?
- What Are Ear Canals?
- What Are Eardrums?
- What Does Epistaxis Mean?
- What Does Exhale Mean?
- What Is Edema?
- What Is Exercise-Induced Asthma?
- What Is External Otitis?
- What's Eczema?
- What's Enamel?
- What's Encopresis?
- What's Enuresis?
- What's Epilepsy?
- What's an EEG (Electroencephalogram)?
- What's an Exchange Meal Plan?
- What's the ER?
- What's the Epidermis?
- What's the Epiglottis?
- What's the Esophagus?
- What's the Eustachian Tube?
- What Are Fats?
- What Are Fatty Acids?
- What Does Farsighted Mean?
- What Is Dental Floss?
- What Is Frostbite?
- What's Fiber?
- What's Fluoride?
- What's a Fever?
- What's a Foreign Body?
- What's a Fracture?
- What's the Flu?
- What's the Frenulum?
- What Are Gastric Juices?
- What Are Genes?
- What Are Gums?
- What Does Genetics Mean?
- What Does Gluteus Maximus Mean?
- What Is GERD?
- What Is Gastritis?
- What Is Gastroenteritis?
- What Is Gingivitis?
- What Is a Gait Abnormality?
- What Is a Glycosylated Hemoglobin Test (Hemoglobin A1c)?
- What Is the Glycemic Index?
- What's Glucagon?
- What's Glucose?
- What's Glycogen?
- What's Growth Hormone?
- What's a Gurney?
- What's a Gynecologist?
- What Are Hives?
- What Are Hormones?
- What Does Hearing Loss Mean?
- What Does Heredity Mean?
- What Does Hyperventilate Mean?
- What Is Hand, Foot, and Mouth Disease?
- What Is Hemophilia?
- What Is Histamine?
- What Is Hydrocephalus?
- What Is Hydrocortisone?
- What Is Hydrogen Peroxide?
- What Is Hyperglycemia?
- What Is Hyperopia?
- What Is Hypoglycemia?
- What Is Hypothermia?
- What's Hay Fever?
- What's Heat Exhaustion?
- What's Herpes Zoster?
- What's a Headache?
- What's a Hemangioma?
- What's a Hematoma?
- What's a Humidifier?
- What Are Immunizations?
- What Are Infections?
- What Are Insulin Injections?
- What Are Involuntary Muscles?
- What Are Islet Cells?
- What Does Inhale Mean?
- What Is Ibuprofen?
- What's Immunotherapy (Allergy Shots)?
- What's Influenza?
- What's Insulin Resistance?
- What's Insulin?
- What's Irritable Bowel Syndrome?
- What's an IV Line?
- What's an Ileus?
- What's an Inhaler?
- What's an Injection?
- What's an Insulin Pump?
- What's the ICU?
- What's the Immune System?
- What's the Intensive Care Unit (ICU)?
- What's the Iris?
- Word! Impetigo
- What Are Ketones?
- What Are Kidney Stones?
- What Are Kidneys?
- What Is Kawasaki Disease?
- What Is Keratin?
- What Is Ketoacidosis?
- What Are Lacrimal Glands?
- What Are Laxatives?
- What Are Ligaments?
- What Are Lymph Nodes?
- What Is Laparoscopy?
- What Is Lou Gehrig's Disease (ALS)?
- What Is Lymph?
- What Is a Lung Function Test?
- What's Lyme Disease?
- What's a Lens?
- What's a Lunula?
- What's the Larynx?
- What Are Migraines?
- What Does Menstruation Mean?
- What Does Myopia Mean?
- What Is Malocclusion?
- What Is Meningitis?
- What Is Multiple Sclerosis?
- What's Melanin?
- What's Mononucleosis?
- What's Mucus?
- What's Myalgia?
- What's a Microscope?
- What's a Mucous Membrane?
- What's an MRI?
- What Are Nerves?
- What Are Nits?
- What Does Nearsighted Mean?
- What Does Nutrition Mean?
- What Is Nephropathy?
- What Is Neuropathy?
- What Is Nicotine?
- What's Nausea?
- What's a Nasal Cavity?
- What's a Nebulizer?
- What's a Neurologist?
- What's a Night Guard?
- What's the Navel?
- What's the Nervous System?
- What Is Osteoporosis?
- What Is Otalgia?
- What Is Otitis Media?
- What's Occupational Therapy?
- What's an Occupational Therapist?
- What's an Oncologist?
- What's an Operation?
- What's an Ophthalmologist?
- What's an Optician?
- What's an Optometrist?
- What's an Orthodontist?
- What's an Orthopedic Surgeon?
- What's an Otolaryngologist?
- What Are Palpitations?
- What Are Papillae?
- What Are Platelets?
- What Are Pupils?
- What Does Pregnant Mean?
- What Does Pulmonary Mean?
- What Is Parkinson's Disease?
- What Is Peritonitis?
- What Is Polydipsia?
- What Is Polyphagia?
- What Is Polyuria?
- What's Perspiration?
- What's Petroleum Jelly?
- What's Plaque?
- What's Pneumonia?
- What's Pollen?
- What's Protein?
- What's Puberty?
- What's a Peak Flow Meter?
- What's a Pediatric Endocrinologist?
- What's a Pediatrician?
- What's a Pimple?
- What's a Prosthesis?
- What's a Pulmonologist?
- What's a Pulse?
- What's the Palate?
- What's the Pancreas?
- What's the Pilomotor Reflex?
- What's the Pinna?
- What Are Red Blood Cells?
- What Are Retractions?
- What Does REM Stand for?
- What Does Rx Mean?
- What Is Retinopathy?
- What Is Roseola?
- What Is Rotavirus?
- What's Respiratory Syncytial Virus (RSV)?
- What's Rhinitis?
- What's Ringworm?
- What's a Radiologist?
- What's a Rash?
- What's a Retainer?
- What's a Rheumatologist?
- What's a Rhinovirus?
- What's the Retina?
- What Are Sebaceous Glands?
- What Are Semicircular Canals?
- What Are Sulfites?
- What Are Symptoms?
- What Does Sphenopalatine Ganglioneuralgia Mean?
- What Does Stat Mean?
- What Does Sternutation Mean?
- What Is Scoliosis?
- What Is Sebum?
- What Is Surgery?
- What's Saliva?
- What's Scabies?
- What's Scarlet Fever?
- What's Shingles?
- What's Sinusitis?
- What's Snot?
- What's Strep Throat?
- What's a Scab?
- What's a Scar?
- What's a Seizure?
- What's a Skin Test?
- What's a Spacer?
- What's a Spinal Tap?
- What's a Spirometer?
- What's a Sprain?
- What's a Stethoscope?
- What's a Strain?
- What's a Strep Screen?
- What's a Stye?
- What's a Suture?
- What's a Syringe?
- What's the Sclera?
- What's the Stapes?
- What Are Taste Buds?
- What Are Tendons?
- What Are Triggers?
- What's Tinnitus?
- What's Tobacco?
- What's Tonsillitis?
- What's a Tonsillectomy?
- What's a Tympanogram?
- What's the Trachea?
- What's the Tragus?
- What's Urine?
- What's Urticaria?
- What's a Urinalysis?
- What's a Urinary Tract Infection (UTI)?
- What's an Ultrasound?
- What's an Umbilical Cord?
- What's an Undescended Testicle?
- What Are Vaccines?
- What Are Veins and Arteries?
- What Are Vertebrae?
- What's Varicella Zoster?
- What's a Virus?
- What's the Vitreous Body?
Note: All information is for educational purposes only. For specific medical advice,
diagnoses, and treatment, consult your doctor.
© 1995- The Nemours Foundation. KidsHealth® is a registered trademark of The Nemours Foundation. All rights reserved.
Images sourced by The Nemours Foundation and Getty Images.
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