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).
Macular cyst
A hole in the macula, the tiny oval area made up of millions of nerve cells located at the center of the retina responsible for sharp, central vision. The eye contains a jelly-like substance called the vitreous. Shrinking of the vitreous…
Read the definitionRandom terms
Show more- Syndrome, respiratory distress (RDS) Formerly known as hyaline membrane disease, a syndrome of respiratory difficulty in newborn infants caused by…
- Risk factor Something that increases a person's chances of developing a disease
- Reservoir, Ommaya A device implanted under the scalp that is used to deliver anticancer drugs to the cerebrospinal fluid, the…
- Syndrome, mucocutaneous lymph node A syndrome of unknown origin, mainly affecting young children. It causes fever, reddening of the eyes…
- Virilize To cause a female to develop male characteristics such as a deepened voice, an increase in body and facial…
- Subtelomeric Below the telomere, the end of a chromosome. For example, it has been reported that subtle subtelomeric…
- Reflex, pressor A pressor reflex is a neurological (nerve) reflex that constricts arterioles (small blood vessels) and…
- Race-based medication See: Race-based drug
- Lazy eye An eye that diverges in gaze. A lazy eye is formally called strabismus. A lazy eye (strabismus) can be due to…
- Amino acid, branched-chain One of the amino acids that has a branch chain, namely, Leucine, isoleucine, and valine
- Calcaneocuboid joint The calcaneocuboid joint is located in the foot between the calcaneus bone (the heel bone) and the cuboid…
- PAS 1. Physician-assisted suicide. 2. Personal alert system (an alarm system for an elderly or infirm person). 3…