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).
Hypernatremia
Elevated blood sodium. Sodium is the major positive ion (cation) in fluid outside of cells. The chemical notation for sodium is Na+ (from natrium, a synonym for sodium). When combined with chloride (Cl), the resulting substance is table…
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Show more- Thyroid hormone receptor A molecule that receives a thyroid hormone and permits it to dock on the nuclear membrane of a cell. The…
- Dust mite A tiny microscopic organism that is the primary cause of allergies related to house dust. The term 'dust mite…
- Transvestism Dressing in the clothing of the opposite sex. Transvestism is distinct from both transsexualism and…
- C (cytosine) C stands for cytosine, a DNA nucleotide that which is one member of the base pair in DNA consisting of…
- Compound 118 Trade name of the insecticide aldrin. See: Aldrin and dieldrin
- Parasitemia The presence of a parasite in the blood. For example, malarial parasitemia. Parasitemia is analogous to…
- Nerve, glossopharyngeal The glossopharyngeal nerve is the ninth cranial nerve. The 12 cranial nerves, the glossopharyngeal nerve…
- Table An old-fashioned but convenient household measure of capacity. A tablespoon holds about 3 teaspoons, each…
- Lyophilization A process by which material is rapidly frozen and dehydrated under high vacuum
- Farsightedness Farsightedness: Medically termed hyperopia; the ability to see distant objects more clearly than close…
- X-ray, AP An X-ray picture in which the beams pass from front-to-back (anteroposterior). An AP film is as opposed to a…
- Serum The clear liquid that can be separated from clotted blood. Serum differs from plasma, the liquid portion of…