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).
Alpha thalassemia
Alpha thalassemia: A blood disorder, thalassemia is not one disease but rather a group of disorders that have a single feature in common: they all have a genetic defect in the production of hemoglobin, the protein that enables red blood…
Read the definitionRandom terms
Show more- Nipple, supernumerary An extra nipple. Supernumerary nipples are usually smaller than normal and vestigial (nonfunctional, without…
- Bradycardia A slow heart rate, usually defined as less than 60 beats per minute. The word bradycardia is logically…
- Arthroscopy Arthroscopy: A surgical technique whereby a tube-like instrument is inserted into a joint to inspect…
- Selenium poisoning Poisoning from selenium, a naturally occurring substance that is toxic at high concentrations but is also a…
- Angle-closure glaucoma, acute Increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) blockage of the…
- Gonad, indifferent In embryonic life, the gonad in males and females is initially identical. This gonad is said to be…
- Cyst, thyrolingual See: Thyroglossal cyst
- Blood group An inherited feature on the surface of the red blood cells. A series of related blood types constitute a…
- Patellar reflex See: Knee jerk
- Ambulatory care Medical care including diagnosis, observation, treatment and rehabilitation that is provided on an outpatient…
- Onychodystrophy Malformation of the nails
- Centimorgan (cM) A unit of measure of genetic recombination frequency. One cM is equal to a 1% chance that a marker at one…