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).
Hypoxemia
Abnormally low levels of oxygen in the blood. Hypoxemia may be mild to severe and leads to shortness of breath. Low blood oxygen can result from a variety of conditions that affect either the ability of the heart to pump blood to the lungs…
Read the definitionRandom terms
Show more- Acid reflux A common condition and an abnormal one in which acid in the stomach rises up into the esophagus. This occurs…
- Laryngeal framework surgery A surgical technique designed to improve the voice by altering the cartilages of the larynx (the voice box)…
- Myostatin A growth factor that regulates the size of muscles beginning in early embryonic development and continuing…
- Gram stain The Danish bacteriologist J.M.C. Gram (1853-1938) devised a method of staining bacteria using a dye called…
- Fear of thunderstorms An abnormal and persistent fear of thunderstorms. Sufferers experience anxiety even when they realize the…
- Bone, endochondral Any bone that develops in and replaces cartilage. The cartilage is partially or entirely destroyed by the…
- Mucus, nasal See: Nasal mucus
- Cirrhosis and gray matter degeneration Bral gray matter, Alpers: A progressive disease of the nervous system characterized by spasticity…
- Allogeneic Taken from different individuals of the same species. Two or more individuals are said to be allogeneic to…
- Alice Stewart See: Stewart, Alice
- Synaptic cleft The tiny space between two nerve cells across which the neurotransmitter acetylcholine diffuses
- Emergency code While there is no formal definition for a 'Code,' doctors often use the term as slang to refer to a patient…