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).
Vaccination, Td
Td is the vaccine given to children over six and adults as boosters for immunity to diphtheria and tetanus.
Read the definitionRandom terms
Show more- Typhus, endemic See Typhus, murine
- Drug, antibiotic A drug used to treat bacterial infections. The original definition of an antibiotic was a substance produced…
- Infection, meningococcal See: Meningococcal infection
- Saphenous vein, large The larger of the two saphenous veins, the principal veins that run up the leg superficially (near the…
- Second wave A phenomenon of infections that can develop during a pandemic. The disease infects one group of people first…
- Qid (on prescription) A Chinese herb (also called sweet wormwood) from which is extracted the antimalarial agent artemisinin.
- CA 27-29 A tumor marker similar to the CA 15-3 that is found in the blood of most breast cancer patients. CA 27-29…
- Perianal abscess An abscess next to the anus that causes tenderness, swelling, and pain on defecation
- Synovial membrane A layer of connective tissue that lines the cavities of joints, tendon sheaths, and bursae and makes synovial…
- Repair, mismatch A system within the cell for correcting errors in DNA that works by detecting and replacing bases in the DNA…
- Spider bites Bites from spiders. These are usually irritating, but not poisonous. Localized reddening and swelling are…
- Cloning vector A DNA molecule originating from a virus, a plasmid (see below) or the cell of a higher organism into which…