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).
Lymphatic system
The tissues and organs, including the bone marrow, spleen, thymus, and lymph nodes, that produce and store cells that fight infection and disease. The channels that carry lymph are also part of this system.
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Show more- Mutation, point A single nucleotide base change in the DNA. A point mutation may consist of the loss of a nucleotide, the…
- Placental stage of labor The part of labor from the birth of the baby until the placenta (afterbirth) and fetal membranes are…
- Testosterone A 'male hormone' -- a sex hormone produced by the testes that encourages the development of male sexual…
- Lactase Enzyme that breaks down the milk sugar lactose into glucose and galactose. Persons with a deficiency of…
- Rupture A break or tear in any organ (such as the spleen) or soft tissue (such as the achilles tendon). Rupture of…
- Histoplasma See: Histoplasma.
- MM In medicine, the abbreviation for meningomyelocele (spina bifida), malignant melanoma, and multiple myeloma…
- Atkins diet A high-protein, high-fat, low-carbohydrate weight-loss diet popularized by Dr. Robert C. Atkins that allows…
- Line, single transverse palmar See: Simian crease
- Aldosteronism Overproduction of the hormone aldosterone from the cortex (the outer layer) of the adrenal gland or a tumor…
- Fungus, foot Athlete's foot causes foot itching, burning, pain, and scaling. It is caused by a fungus and is treated with…
- Allergy, honey bee See: Honey bee allergy