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).
Trait, dominant lethal
A genetic trait that, if present in the genome of the individual, is expressed and therefore precludes the individual's having descendants. All such cases with a dominant lethal trait must necessarily be sporadic and must represent new…
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Show more- Habitual abortion The miscarriage of 3 or more consecutive pregnancies. The abortion of 3 or more miscarriages (spontaneous…
- Formaldehyde A pungent gas, with the chemical formula HCHO, used as an antiseptic, disinfectant, and especially today as a…
- Nasal septum hematoma An accumulation of blood within the nasal septum, the wall inside the nose that runs down the middle dividing…
- Fascioliasis See: Fasciola hepatica
- Premenstrual Just before the start of menstruation. As in a premenstrual headache
- Polymerase, DNA Enzyme that catalyzes (speeds) the polymerization of DNA. DNA polymerase uses preexisting nucleic acid…
- Raynaud's phenomenon Short for red blood cells, the cells that carry oxygen and carbon dioxide through the blood. This rather…
- Cyclic vomiting syndrome See: Cystocele.
- Clinodactyly Curving of the fifth finger (the little finger) toward the fourth finger (the ring finger). Sometimes called…
- Sludge, biliary A mixture of microscopic particulate matter in bile that occurs when particles of material precipitate from…
- Cervical Having to do with any kind of neck including the neck on which the head is perched and the neck of the…
- Personality disorder A disorder characterized by the chronic use of mechanisms of coping in an inappropriate, stereotyped, and…