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).
Osteopenia
Mild thinning of the bone mass, but not as severe as osteoporosis. Osteopenia results when the formation of bone (osteoid synthesis) is not enough to offset normal bone loss (bone lysis). Osteopenia is generally considered the first step…
Read the definitionRandom terms
Show more- Mydriasis Dilation of the pupils induced by eyedrops. The opposite of miosis.
- Tarsus, bony See: Bony tarsus
- Syndrome, dyskeratosis congenita An inherited cause of bone-marrow failure, dyskeratosis congenita is a syndrome characterized by abnormal…
- Whipworm A nematode (roundworm) also called Trichuris trichiura. The third most common round worm of humans. The worm…
- Purpura 1. A hemorrhagic area in the skin. The area of bleeding within the skin, by definition, is greater than 3…
- Stomach 1. The sac-shaped digestive organ that is located in the upper abdomen, under the ribs. The upper part of the…
- RWI Recreational water illness
- Working memory Short-term (recent) memory. Working memory is a system for temporarily storing and managing the information…
- Schwartz-Jampel syndrome The largest nerve in the body, the sciatic nerve begins from nerve roots in the lumbar part of the spinal…
- Immunity The condition of being immune. Immunity can be innate (for example, humans are innately immune to canine…
- Virus, Coxsackie See: Coxsackievirus
- Dysarthria Speech that is characteristically slurred, slow, and difficult to produce (difficult to understand). The…