MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Stenosis, pulmonary
The pulmonary valve is too tight so that the flow of blood from the right ventricle of the heart into the pulmonary artery is impeded. This means the right ventricle must pump harder than normal to overcome the obstruction. If the stenosis…
Read the definitionRandom terms
Show more- Foodborne disease A disease caused by consuming contaminated food or drink. Myriad microbes and toxic substances can…
- Mercury gilding A perilous process for gold-plating in which an amalgam of mercury and gold is applied to an object and then…
- DOB Abbreviation standing for the date of birth. As examples, 'DOB: 10/12/97' in the U.S. indicates the date of…
- Pulmonary acinus The ending of a tiny airway in the lung, where the alveoli (air sacs) are located. In anatomy, an acinus is a…
- Diploid The number of chromosomes in most cells of the body. This number is 46 in humans. It is naturally twice the…
- Lawson Wilkins See: Wilkins, Lawson
- PCO disease >Irregular or no periods >Acne >Obesity, and >Excess hair growth. All women with PCO have irregular or no…
- Foramen, neural See: Intervertebral foramen
- Primary ciliary dyskinesia The immotile cilia syndrome, a condition in which poorly functioning cilia (hairlike projections from cells)…
- Houseboat carbon monoxide poisoning The invisible and potentially lethal danger of carbon monoxide on houseboats. Carbon monoxide poisoning is a…
- Gland, adrenal One of a pair of small glands, each of which sits on top of one of the kidneys. The adrenal is made up of an…
- Fibrillin 1 See: FBN1