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).
Cloaca
A common passageway for feces, urine and reproduction. At one point in the development of the human embryo, there is a cloaca. It is the far end of a structure called the hindgut. This structure then divides to form a rectum, a bladder…
Read the definitionRandom terms
Show more- Crown 1. In dentistry, the portion of the tooth that is covered by enamel. 2. Also in dentistry, a type of…
- Tobacco A South American herb, formally known as Nicotiana tabacum, whose leaves contain 2-8% nicotine and serve as…
- Fever blister A small sore situated on the face or in the mouth that causes pain, burning, or itching before bursting and…
- Human gene map The locations of the human genes. The location of each gene is called a locus (plural: loci). The total…
- CRP An intestinal infection characterized by diarrhea caused by a microscopic parasite, Cryptosporidium parvum…
- Livedo reticularis A mottled purplish discoloration of the skin. Livedo reticularis can be a normal condition that is simply…
- Appendiceal rupture Rupture of appendix
- Takayasu disease Takayasu disease: A chronic inflammatory disease of the aorta and its branch arteries. The cause is unknown…
- Passive immunity Immunity produced by the transfer to one person of antibodies that were produced by another person…
- Trichomoniasis Trichomoniasis: Infection with trichomonas, in humans with Trichomonas vaginalis.
- Cystoscope An optical instrument (a scope) that is inserted through the urethra into the bladder. A cystoscope has two…
- Barotrauma, sinus See: Sinus barotrauma