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).
Drugs during pregnancy, dangerous
A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the pregnancy or produce a congenital malformation (a birth defect). Classes of teratogens include radiation, maternal infections, chemicals…
Read the definitionRandom terms
Show more- Breast feeding See: Breastfeeding
- Lichenification Thick, leathery skin, usually the result of constant scratching and rubbing. With prolonged rubbing or…
- Syringoma A benign (non-cancerous) skin tumor that derives from eccrine cells, specialized cells that are related to…
- DNA replication A wondrous complex process whereby the ('parent') strands of DNA in the double helix are separated and each…
- Hypertension, pulmonary See: Pulmonary hypertension
- Osteogenesis The production of bone
- Antiparallel A term applied to two molecules that are side by side but run in opposite directions. The two strands of DNA…
- Glans and foreskin, inflammation of the In the uncircumcised male, balanitis (inflammation of the glans, the rounded head of the penis) and posthitis…
- Rash Rash: Breaking out (eruption) of the skin. Medically, a rash is referred to as an exanthem.
- Streptococcus haemolyticus Another name for streptococcus pyogenes
- Colorectal polyp A polyp (a fleshy growth) on the inside lining of the colon or rectum. For more information, see: Colon polyp
- Carbolic acid A synonym of phenol. In dilute solution, an antimicrobial agent. First used to clean wounds and dress them by…