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).
Physiology
>Some physiological studies are concerned with processes that go on within cells such as phagocytosis, the process by which cells engulf and usually digest particles, bacteria and other microorganisms, and even harmful cells. The…
Read the definitionRandom terms
Show more- Protease inhibitor One of a class of anti-HIV drugs designed to inhibit the enzyme protease and thereby interfere with virus…
- Joint, atlas and axis The joint between the atlas and axis bones. The atlas is the first cervical (neck) vertebra which is just…
- Peter Pan syndrome Term coined by pop psychology author Dan Kiley in his book 'Peter Pan syndrome: Men Who Have Never Grown Up.'…
- Prontosil The first sulfa drug to be discovered. Largely of historic interest today. The discovery was made by the…
- Sac, egg See: Egg sac
- Endoderm One of the three primary germ cell layers -- the other two are the mesoderm and ectoderm -- in the very early…
- West Nile virus West Nile virus: The mosquito-borne virus that causes West Nile fever. One of the flaviviruses, a family of…
- Vitamin B3 Vitamin B3 is niacin. Deficiency of niacin causes pellagra. Pellagra was known as the 'disease of the four…
- American College of Nurse-Midwives See: Nurse-midwife
- Methylation 1. In chemistry, the addition of a methyl group to a molecule. 2. On a protein level, the addition of a…
- Third and fourth pharyngeal pouch syndrome See: DiGeorge syndrome
- Extremity The extremities in medical language are not freezing cold or scorching heat but rather the uttermost parts of…