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).
Immune tolerance
A state of unresponsiveness to a specific antigen or group of antigens to which a person is normally responsive. Immune tolerance is achieved under conditions that suppress the immune reaction and is not just the absence of a immune…
Read the definitionRandom terms
Show more- Itching Itching: An uncomfortable sensation in the skin that feels as if something is crawling on the skin or in the…
- Attenuated virus To attenuate is to weaken or to make (or become) thin. The word derives from a combination of the Latin…
- Rickets A disease of infants and children that disturbs normal bone formation (ossification). Rickets is a failure to…
- Barotrauma, sinus See: Sinus barotrauma
- Dental Association, American (ADA) The mission statement of the ADA reads as follows: 'The ADA is the professional association of dentists…
- IUD (intrauterine contraceptive device) A device inserted into the uterus (womb) to prevent conception (pregnancy). The IUD can be a coil, loop…
- Mononeuropathy A disorder of a single nerve or nerve trunk. Mononeuropathies may be due to entrapment, compression, stretch…
- Stretch, quadriceps An exercise to stretch the quadriceps muscle, the large muscle in the front of the thigh. To do this…
- Delivery, vertex In a vertex delivery, the top of the baby's head comes first. The vertex here refers to the top of the head…
- Houseboat carbon monoxide poisoning The invisible and potentially lethal danger of carbon monoxide on houseboats. Carbon monoxide poisoning is a…
- Annulus A ringlike structure, or any body part that is shaped like a ring. Applied to many small ring-shaped…
- Pulmonary artery One of the two vessels which are formed as terminal branches of the pulmonary trunk and convey unaerated…