MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Rubella immunization
The standard MMR vaccine is given to prevent measles, mumps and rubella (German measles). The MMR vaccine is now given in two dosages. The first should be given at 12-15 months of age. The second vaccination should be given at 4-6 years…
Read the definitionRandom terms
Show more- James Ramsay Hunt See: Ramsay Hunt, James
- Rod Beals See: Beals, Rodney K.
- Noncoding DNA The strand of DNA that does not carry the information necessary to make proteins. DNA normally has two…
- Measles Measles: An acute and highly contagious viral disease characterized by fever, runny nose, cough, red eyes…
- DNA (did not attend) In the UK, DNA is an abbreviation for 'did not attend.' (In the US, the term used for a patient who missed an…
- Histocompatibility Literally, tissue compatibility. With full histocompatibility between a donor and recipient, tissue can be…
- Vestibule of the ear A cavity in the middle of the bony labyrinth in the inner ear
- Flu, Spanish See: Spanish flu
- PA (posteroanterior) In anatomy, PA stands for posteroanterior: from back-to-front. For example, a PA X-ray of the chest is taken…
- LP (lumbar puncture) Also known as a spinal tap, an LP is a procedure whereby spinal fluid is removed from the spinal canal for…
- Surgery, YAG laser The use of a YAG (yttrium-aluminum-garnet) laser to do surgery. One use for a YAG laser in surgery is to…
- Fear of crossing streets Abnormal and persistent fear of crossing streets, highways and other thoroughfares; fear of thoroughfares…