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).
Zona pellucida
The strong membrane that forms around an ovum as it develops in the ovary. The membrane remains in place during the egg's travels through the Fallopian tube. To fertilize the egg, a sperm must penetrate the thinning zona pellucida. If…
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Show more- Varco, Richard L. Innovative American surgeon (1912-2004) who helped perform the first successful open heart operation. On…
- Sidney Goldring See: Goldring, Sidney
- Bp In genetics, base pair. In general medicine, blood pressure (but usually in capital letters as BP)
- Frankenfood Perjorative term for genetically modified food whether it be derived from genetically engineered plants or…
- Thymus A lymphoid organ situated in the center of the upper chest just behind the sternum (breastbone). It is in the…
- Flatfoot 1. A foot in which the arch of the instep is flattened and the entire sole touches the ground. See…
- Low tension glaucoma See: Glaucoma, normal tension
- Conn syndrome Overproduction of the hormone aldosterone (pronounced al-do-ster-one) by a tumor that contains tissue…
- Adnexa This Latin word (in the plural) is used in medicine in reference to appendages. For example, in gynecology…
- Dwarfism, achondroplastic A genetic disorder of bone growth, achondroplasia is the most common cause of short stature with…
- Thrombotic disease due to protein C deficiency Protein C is a protein in plasma that enters into the cascade of biochemical events leading to the formation…
- Illness, altitude >If possible, don't fly or drive to high altitude. Start below 10,000 feet (3,048 meters) and walk up. >If…