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).
Leukemia
Leukemia: Cancer of the blood cells. The growth and development of the blood cells are abnormal. Strictly speaking, leukemia should refer only to cancer of the white blood cells (the leukocytes) but in practice it can apply to malignancy…
Read the definitionRandom terms
Show more- Retinal artery, central The blood vessel that carries blood into the eye and supplies nutrition to the retina. The counterpart to the…
- Red blood cells The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them…
- Superaspirin A class of drugs that act in certain but not all ways like aspirin. Also known as Cox-2 inhibitors, these…
- Contraction The tightening and shortening of a muscle
- Hereditary mutation Mutation: A heritable change in the DNA of a gene or chromosome in a cell destined to become an egg or a…
- Stevens-Johnson syndrome See: Stewart, Alice.
- Psychiatry The medical specialty concerned with the prevention, diagnosis, and treatment of mental illness…
- Chromosome disorder An abnormal condition due to an abnormality of the chromosomes. For example, Down syndrome (the genetic…
- Prostatectomy, radical See: Radical prostatectomy
- Dermatofibroma A common type of benign skin tumor that is small, slow-growing, typically firm, red-to-brown and most often…
- Multipara A woman who has had 2 or more pregnancies resulting in potentially viable offspring. A woman who is 'para…
- Test, exercise cardiac stress The exercise cardiac stress test (ECST) is the most widely used cardiac (heart) screening test. The patient…