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.
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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).
ALS5
See: Amyotrophic lateral sclerosis 5
Read the definitionRandom terms
Show more- Cyst, synovial, of the popliteal space A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined…
- Artificial heart A manmade heart. An artificial heart was temporarily implanted in 1969 by Denton Cooley in Houston, Texas…
- Acathisia See: Akathisia
- Eyelids, adult ptosis of the Drooping of the upper eyelids in adults, most commonly due to separation of the tendon of the lid-lifting…
- Bathophobia An abnormal and persistent fear of depths. Sufferers from bathophobia experience anxiety even though they…
- NCCS National Coalition for Cancer Survivorship
- Sickness, morning Nausea and vomiting of pregnancy. Morning sickness is a misnomer, because it can occur at any time of the day…
- Apnea An apnea is a period of time during which breathing stops or is markedly reduced. There are two types of…
- Reactant, acute-phase See: Acute-phase protein
- Histidine An amino acid, one of the 20 building blocks of protein. An essential amino acid, histidine is present in…
- PCT The abbreviation 'PCT' stands for a number of things including porphyria cutanea tarda, literally, the late…
- Chronic fatigue syndrome See: Chronic myelogenous leukemia.