MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Lymphatic
Calf: The belly or fleshy hind part of the leg below the knee. The calf is made up mainly of the gastrocnemius muscle (which comes from the Greek "gastroknemia" meaning calf of the leg, from "gaster" (gastr-), belly, + "kneme," leg). The…
Read the definitionRandom terms
Show more- Globus minor The globus minor is the tail of the epididymis, a cordlike structure just behind the testis. The globus major…
- Allergy Allergy: A misguided reaction to foreign substances by the immune system, the body system of defense against…
- Receptor, visual The layer of rods and cones, the visual cells, of the retina
- Charles Darwin See: Darwin, Charles
- Galactorrhea The spontaneous flow of milk from the nipple at any time other than during nursing. Galactorrhea can be due…
- Virion A complete virus particle with its DNA or RNA core and protein coat as it exists outside the cell. Also…
- Passage, nasal The walls of the nasal passages are coated with respiratory mucous membranes which contain innumerable tiny…
- RPR test Rapid plasma reagin, a blood test for syphilis that looks for an antibody that is present in the bloodstream…
- Sweat gland The sweat (sudoriferous) glands are small tubular structures situated within and under the skin (in the…
- Body fat monitor See: Bioelectric impedance analysis
- Diffuse mastocytosis A form of mastocytosis in which the entire skin is thickened and leathery with generalized reddening and…
- Cavities Cavities: Holes in the two outer layers of a tooth called the enamel and the dentin. The enamel is the…