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).
Oxygen mask
A mask that covers the mouth and nose, and is hooked up to an oxygen tank. It delivers oxygen directly to the patient. Oxygen can also be delivered directly through a nasal catheter, a tube that divides into two smaller tubes that go into…
Read the definitionRandom terms
Show more- Gene family A group of genes related in structure and often in function. The genes belonging to a gene family are…
- Y (in chemistry) The symbol for the element yttrium, an ultrarare metal named after Ytterby in southern Sweden. Yttrium has…
- H Symbol for hydrogen
- Vascular Relating to the blood vessels of the body. The blood vessels of the body, as a group, are referred to as the…
- Nerve A bundle of fibers that uses chemical and electrical signals to transmit sensory and motor information from…
- Zoll See: Zoll, Paul M.
- Amazia A condition wherein the breast tissue is absent, but the nipple is present. Amazia typically is a result of…
- Inheritance, mitochondrial The type of hereditary pattern seen when there is more than one genetic factor involved and, sometimes, when…
- Incompetent cervix A cervix that is abnormally liable to dilate and so is not competent to keep the fetus up in the uterus and…
- Janiceps Conjoined twins whose heads are fused together, with the faces looking in opposite directions, like the…
- Cyclooxygenase Abbreviated cox. See: Cox-1; Cox-2
- Jaundice, neonatal Yellowish staining of the skin and whites of the newborn's eyes (sclerae) by pigment of bile (bilirubin). In…