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).
Anal fissure
Anal fissure: Common tear in the anal canal. Anal fissure is a common cause of red blood in the stool.
Read the definitionRandom terms
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- Cervix, incompetent A cervix that is abnormally liable to dilate and so is not competent to hold the fetus and keep it from being…
- Wagner's syndrome See: Stickler syndrome
- Chickenpox Immunization designed to prevent or lessen the severity of the common disease known as chickenpox. The…
- Anfinsen See: Anfinsen, Christian Boehmer, Jr.
- Stroke Stroke: The sudden death of some brain cells due to a lack of oxygen when the blood flow to the brain is…
- Locomotive system Limited to a local region. See also: Locoregional anesthesia; Locoregional metastasis.
- Female gonad The female gonad, the ovary or 'egg sac', is one of a pair of reproductive glands in women. They are located…
- Habitual abortion The miscarriage of 3 or more consecutive pregnancies. The abortion of 3 or more miscarriages (spontaneous…
- Menstruation Menstruation: The periodic blood that flows as a discharge from the uterus. Also called menorrhea, the time…
- SAPHO syndrome SAPHO syndrome: SAPHO syndrome is an eponym for a condition which is characterized by a combination of: >…
- Mitral valve prolapse Mitral valve prolapse: Drooping down or abnormal bulging of the mitral valve's cusps backward into the atrium…