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).
Over-the-counter (OTC) drug
A drug for which a prescription is not needed
Read the definitionRandom terms
Show more- Abate To lessen or decrease. After a boil is lanced, the pus can drain and the pain and tenderness abate. From the…
- Dual X-ray absorptometry See: DXA
- Big toe sign An important neurologic examination based upon what the big toe (and other toes) do when the sole of the foot…
- Neutral foot type The most common type of foot. A runner with a neutral type of foot lands on the heel and rolls forward during…
- Postop Short for postoperative, after surgery. The opposite of postop is preop
- Bone, ethmoid See: Ethmoid bone
- Monochromatism 1) Total inability to perceive color. A person with true monochromatism perceives only black, white, and…
- Nurses Health Study A very large and important prospective investigation into the risk factors for major chronic diseases in…
- Breast surgeon A surgeon who is especially skilled in operating on the breast. A breast surgeon may biopsy a tumor in the…
- Naturalistic study A type of study in which the researcher very carefully observes and records some behavior or phenomenon…
- Laryngeal nerve, recurrent One of the best known branches of the vagus nerve, a very long nerve that originates in the brainstem. After…
- British National Formulary Osteogenesis imperfecta, not one but a group of genetic diseases, all of which affect collagen, a key…