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).
Public Health Service, United States (USPHS)
The agency responsible for the public health of the American people. The Public Health Service (PHS) administers a number of critically important health agencies including the Food and Drug Administration (FDA), the Centers for Disease…
Read the definitionRandom terms
Show more- Epithelial carcinoma Cancer that begins in the cells that line an organ.
- Histology The study of the form of structures seen under the microscope. Also called microscopic anatomy, as opposed to…
- Hormone, thyroxine A chemical substance made by the thyroid gland The thyroid gland uses iodine to make thyroid hormones…
- Cerebral arterial gas embolism (CAGE) Gas bubbles traveling and lodging (embolizing) in the arteries that supply the brain with blood (and oxygen)…
- Pollen count The number of pollen grains landing on a given area during a specified time. The count is taken by a spinning…
- Meditation A self-directed practice for relaxing the body and calming the mind. Most meditative techniques have come to…
- Therapy, constraint-induced movement A form of intensive physical therapy aimed at reorganizing and reprogramming the brain after a stroke, a…
- Sedative A drug that calms a patient down, easing agitation and permitting sleep. Sedatives generally work by…
- Hepatic An artery that distributes blood to the liver, pancreas and gallbladder as well as to the stomach and…
- United Network for Organ Sharing (UNOS) The nationwide umbrella for transplantation organ sharing in the U.S. UNOS states that it is 'a private…
- Microphthalmia An abnormally small eye, a congenital malformation (birth defect) of the globe. The related term…
- Poikiloderma Extra pigmentation of the skin demonstrating a variety of shades and associated with widened capillaries…