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).
Ultraviolet radiation
Invisible rays that are part of the energy that comes from the sun. Ultraviolet radiation can burn the skin and cause skin cancer. Ultraviolet radiation is made up of three types of rays -- ultraviolet A, ultraviolet B, and ultraviolet C…
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Show more- Mediterranean diet >High consumption of fruits, vegetables, bread and other cereals, potatoes, beans, nuts and seeds; >Olive oil…
- Carotene, beta An antioxidant, a substance that protects cells against oxidation damage which, it is thought, can lead to…
- Methadone A synthetic opiate. The most common medical use for methadone is as a legal substitute for heroin in…
- Xuezhikang One of the three major preparations of red yeast rice, a tradition Chinese medicine now used to lower…
- Sedative A drug that calms a patient down, easing agitation and permitting sleep. Sedatives generally work by…
- Chromosome 1 The largest human chromosome, comprising approximately 10% of the human genome. Chromosome 1 contains over…
- Dermatoglyphics The study of the patterns of ridges on the skin of the fingers, palms, toes, and soles. Dermatoglyphics are…
- Pregnancy, extrauterine A pregnancy that is not in the usual place and is located outside the inner lining of the uterus. A…
- Variola The old practice of inoculating someone with the virus of smallpox to produce immunity to the disease. Lady…
- Epidemic hemorrhagic fever A number of diseases characterized by an abrupt onset of high fever and chills, headache, cold and cough, and…
- MtDNA Mitochondrial DNA (mtDNA) is the DNA of the mitochondrion, a structure situated in the cytoplasm of the cell…
- Radiation therapy, 3-D A procedure that uses computers to create a 3-dimensional picture of the tumor in order to target it as…