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).
Advance directives
These directives pertain to treatment preferences and the designation of a surrogate decision-maker in the event that a person should become unable to make medical decisions on their own behalf. Advance directives generally fall into three…
Read the definitionRandom terms
Show more- Periosteum The periosteum is a dense membrane composed of fibrous connective tissue that closely wraps (invests) all…
- Sapovirus A virus, formerly called 'Sapporo-like virus' (SLV) and sometimes referred to as classic or typical…
- Vertebrae, lumbar There are 5 lumbar vertebrae. The lumbar vertebrae are situated between the thoracic vertebrae and the sacral…
- Recur To occur again. To return. Any symptom (such as fatigue), any sign (such as a heart murmur), or any disease…
- Meconium ileus Obstruction of the intestine (ileus) due to overly thick meconium, the dark sticky stuff that is normally…
- Neuron, spindle See: Spindle neuron
- Multiple myeloma Multiple myeloma: A malignancy of plasma cells (a form of lymphocyte) that typically involves multiple sites…
- Infertility Infertility: The diminished ability or the inability to conceive and have offspring. Infertility is also…
- Macular Pertaining to the macula. A macula is a small spot. A macula on the skin is a small flat spot while the…
- STEP procedure See: Serial transverse enteroplasty
- Collateral knee ligament, medial The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- Omniscience All knowledge. Infinite awareness, understanding, and insight. Someone who (supposedly) possesses omniscience…