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).
Sputum
The mucus and other matter brought up from the lungs, bronchi, and trachea that one may cough up and spit out or swallow. The word 'sputum' is borrowed directly from the Latin 'to spit.' Called also expectoration
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Show more- Transesophageal echocardiography A diagnostic test, using a special probe placed within the esophagus, that employs ultrasound waves to make…
- Junk DNA Noncoding regions of DNA that have no apparent function. The term 'junk DNA' is a disparaging one, expressing…
- Disk, intervertebral See: Intervertebral disk
- Polymerase, DNA Enzyme that catalyzes (speeds) the polymerization of DNA. DNA polymerase uses preexisting nucleic acid…
- Venule A little vein. Venules go from capillaries to veins, vessels that carry blood low in oxygen content from the…
- Shock, shell The World War I name for what is known today as post-traumatic stress, this is a psychological disorder that…
- Pleiotropic cytokine Cytokine that affects the activity of multiple cell types. A cytokine is a small protein that has a specific…
- Vaccine, oral polio See: Polio vaccine, oral
- Arteriohepatic dysplasia Also known as Alagille syndrome, this ia a genetic disorder characterized by jaundice in the newborn period…
- Zygomycosis A dangerous infection caused by a water-borne fungus. Zygomycosis is seen most often in patients who are…
- CD40 A receptor molecule on the cell surface of all mature B cells (B lymphocytes), most B-cell malignancies, and…
- Adipose 'Adipose' means 'fat' but is usually used to refer specifically to tissue made up of mainly fat cells such as…