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).
Shot, flu
The flu (influenza) vaccine is recommended annually (each year) for persons at high risk for serious complications from influenza virus infection. Those include: > >Everyone age 65 or more; >People with chronic diseases of the heart…
Read the definitionRandom terms
Show more- Normal growth rate The speed with which normal growth occurs in length before birth and in height after birth. Fetal growth is…
- Mouse genome All of the genetic information contained in the laboratory mouse (Mus musculus). The genomes of particular…
- Lambert-Eaton myasthenic syndrome An autoimmune disease characterized by weakness and fatigue of the proximal muscles (those near the trunk)…
- Hurricane A regionally specific name for a strong tropical cyclone. The term hurricane applies in the North Atlantic…
- Dysentery Inflammation of the intestine, often with pain, diarrhea, bloody stools, etc. It is usually caused by…
- Traumatology The branch of surgery that deals with trauma patients and their injuries. Patients who have suffered…
- Q.i.d. (on prescription) Seen on a prescription, q.i.d. (or qid) means 4 times a day (from the Latin quater in die). The abbreviation…
- Fievre boutonneuse African tick typhus, one of the tick-borne rickettsial diseases of the eastern hemisphere, similar to Rocky…
- Numbness (Numb) Coin-shaped patches of irritated skin-most common on the arms, back, buttocks, and lower legs that may be…
- Differentiated cancer Cancer: A cancer in which the cells are mature and look like cells in the tissue from it arose…
- Chapped lips >Do not lick or bite the lips. >Use a chapstick or lipstick on the lips before going outside. Reapply it…
- Colitis, spastic A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility)…