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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Iodine deficiency
Iodine is a natural requirement of our diets. Iodine deficiency can lead to inadequate production of thyroid hormone from the thyroid gland (hypothyroidism). For example, in some parts of Zaire, Ecuador, India, and Chile, remote…
Read the definitionRandom terms
Show more- Disease, sickle cell A genetic blood disease due to the presence of an abnormal form of hemoglobin, namely hemoglobin S…
- Madelung disease A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper…
- Hump, dowager An outward curvature of the vertebrae of neck, creating a hump at the back of the neck, once thought to be a…
- Fantod A state of nervous anxiety or irritability. Also an irritable outburst. Pronounced fan-todd
- Ragweed Any of a number of weedy composite herbs that produce a pollen that is a frequent cause of allergies. Of all…
- Vessel A tube in the body that carries fluids: blood vessels or lymph vessels
- Syncope, vasovagal See: Vasovagal syncope
- Penicillin history The discovery of penicillin, one of the major events in the history of medicine. In 1871 the scientist Joseph…
- American Cancer Society (ACS) A 'nationwide community-based voluntary health organization dedicated to eliminating cancer as a major health…
- Enediyne A very potent and naturally occurring antibiotic that acts by cleaving DNA. The adverse effects of enediynes…
- Mild cognitive impairment Abbreviated MCI. A brain disorder in which thinking abilities are mildly impaired. Individuals with mild…
- Injury, hangman (Hangman's fracture) Injury to one of the two crescent-shaped cartilage pads between the two joints formed by the femur (the thigh…