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).
Codon
A set of any three adjacent bases in the DNA or RNA. There are 64 different codons of which 61 specify the incorporation of an amino acid into a polypeptide chain while the remaining three are stop codons that signal the end of a…
Read the definitionRandom terms
Show more- Xanthoma, eruptive See: Eruptive xanthoma
- Syringoma A benign (non-cancerous) skin tumor that derives from eccrine cells, specialized cells that are related to…
- Pit, ear Tiny pit in front of the ear. Also preauricular pit. A minor anomaly of no great consequence in itself. More…
- Stewart, Alice (1906-2002) English physician and epidemiologist who discovered the connection between fetal X-rays and…
- Gene silencing A mechanism by which cells shut down large sections of chromosomal DNA. Gene silencing is done by…
- Disease, Brill-Zinsser Recrudescence of epidemic typhus years after the initial attack. The agent that causes epidemic typhus…
- Vein, varicose See: Varicose vein
- Breast cancer, familial A number of factors have been identified that increase the risk of breast cancer. One of the strongest of…
- Flatfoot 1. A foot in which the arch of the instep is flattened and the entire sole touches the ground. See…
- Wharton's jelly A gelatinous substance within the umbilical cord. Wharton's jelly is a rich source of stem cells. Named for…
- Stethoscope An instrument used to transmit low-volume sounds such as the heartbeat (or intestinal, venous, or fetal…
- Head bones There are 29 bones in the human head. They consist of 8 cranial bones, 14 facial bones, the hyoid bone, and 6…