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).
Aldosteronism
Overproduction of the hormone aldosterone from the cortex (the outer layer) of the adrenal gland or a tumor containing that type of tissue. Excess aldosterone (pronounced al'-do-ster-one) results in low potassium levels (hypokalemia)…
Read the definitionRandom terms
Show more- Epiphenomenon 1. An additional symptom or condition that appears during the course of a disease. A doctor might ask if you…
- Cyst A cyst is an abnormal, closed sac-like structure within a tissue that contains a liquid, gaseous, or…
- Horner syndrome A complex of abnormal findings, namely sinking in of one eyeball, ipsilateral ptosis (drooping of the upper…
- Fever, jail See: Typhus, epidemic
- Bone mass density A measure of bone density. Loss of bone mass is due to osteopenia or, if more severe, to osteoporosis
- Low vision device A devise to help to improve visual ability of a person with low vision. Low vision devices may be optical or…
- Acoustic neuroma A benign tumor that may develop on the hearing and balance nerves near the inner ear. The tumor results from…
- Fluoride A compound of fluorine with another element or radical. Fluoride compounds are present in drinking water and…
- Iliopsoas muscle The upper part of the bony pelvis which forms the receptacle for the head of the femur at the hip joint. The…
- Angiitis See: Vasculitis
- Viral infection Infection caused by the presence of a virus in the body. Depending on the virus and the person's state of…
- Liquid nitrogen Nitrogen in a liquid state. Liquid nitrogen is supercool -- about 200 degrees Celsius (320 degrees…