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).
Presbyopia
Presbyopia: The loss of the eye's ability to change focus to see near objects. The reasons for this loss of the power of accommodation are not yet fully known. It is conventionally said to be due to the lens becoming less elastic with…
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Show more- Hantavirus pulmonary syndrome Acronym for High Altitude Pulmonary Edema, the accumulation in the lungs of extravascular fluid (fluid…
- LaCrosse encephalitis Enzyme that breaks down the milk sugar lactose into glucose and galactose. Persons with a deficiency of…
- Synovial fluid The slippery fluid that lubricates joints and provides nutrients to the cartilage. Also known as the synovia
- Chromosome, X See: Chronic myelogenous leukemia.
- Disease, chronic obstructive lung (COLD) Any disorder that persistently obstructs bronchial airflow. COLD mainly involves two related diseases --…
- Mesenteric artery One of the arteries which arises from the abdominal portion of the aorta and distributes blood to most of the…
- ZIP code, protein An informal name for a molecular cell biology system of signals or 'address tags' that guide the movement of…
- Typhus, Queensland tick See: Queensland tick typhus
- Skin graft, porcine A skin graft in which pig skin is used. Like grafts from human donors, porcine grafts are usually just a…
- Conn syndrome Overproduction of the hormone aldosterone (pronounced al-do-ster-one) by a tumor that contains tissue…
- Hemi- Prefix meaning one half, as in hemiparesis, hemiplegia, and hemithorax. From the Greek hemisus meaning half…
- Tartar Tartar is the hardened product of longstanding plaque accumulating minerals from the saliva and foods. Plaque…