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).
Placebo
Also called the placebo response. A remarkable phenomenon in which a placebo -- a fake treatment, an inactive substance like sugar, distilled water, or saline solution -- can sometimes improve a patient's condition simply because the…
Read the definitionRandom terms
Show more- Omniscience All knowledge. Infinite awareness, understanding, and insight. Someone who (supposedly) possesses omniscience…
- Posture The carriage of the body as a whole, the attitude of the body, or the position of the limbs (the arms and…
- Aphasia, amnesic See Anomia
- Cyclopia A congenital abnormality (birth defect) in which there is only one eye. That eye is centrally placed in the…
- Avascular necrosis of the femoral head See Legg-Calve-Perthes disease
- Intrauterine In the uterus (the womb). As opposed to extrauterine: outside the uterus. For example, normal pregnancies are…
- De Lange syndrome A relatively common birth defect syndrome with multiple malformations and mental retardation of unknown…
- Unwell Not well or in good health, ailing, sick, indisposed. For example, 'I am well-nigh choked with the sulfurous…
- Monoamine oxidase inhibitor One of a potent class of medications used to treat depression. Abbreviated MAOI.
- Voice disorder One of a group of problems involving abnormal pitch, loudness, or quality of the sounds produced by the…
- Visual acuity test This test measures how well you see at various distances. It is the familiar eye chart test. The eye chart…
- Bromine A brownish-red element that is a liquid at room temperature, dissolves in water, and has a bleach-like…