MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Pica
A craving for something not normally regarded as nutritive. For example, dirt. Pica is a classic clue to iron deficiency in children. It also occurs in zinc deficiency. Pica is also seen as a symptom in several neurobiological disorders…
Read the definitionRandom terms
Show more- Menstruation, cessation of Menstruation, cessation of: Menstruation ends naturally in middle age with the onset of the menopause. It can…
- Electroshock therapy See Electroconvulsive therapy
- Dyspnea Difficult or labored breathing; shortness of breath. Dyspnea is a sign of serious disease of the airway…
- Pancreatic alpha cell A type of cell in the pancreas (the organ of the digestive system located behind the stomach). Within the…
- Red blood cells The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them…
- Lumpectomy The surgical removal of a small tumor (a lump) which may or may not be benign (or malignant). Lumpectomy has…
- Toxin, anthrax The toxic substance secreted by the bacterium Bacillus anthracis, the causative agent of the disease anthrax…
- Locoregional anesthesia Anesthesia that produces loss of pain only in the region of the surgery. This may be done by a 'spinal' in…
- Immune tolerance A state of unresponsiveness to a specific antigen or group of antigens to which a person is normally…
- Ragged red fibers with CPEO See: Kearns-Sayre syndrome
- Brace, foot-drop See Ankle-foot orthosis
- Leucemia A different spelling of leukemia, cancer of the blood cells. The growth and development of the blood cells…