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).
Hydrocephaly
Also known as hydrocephalus, this is an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles of the brain. The fluid is often under increased pressure and can compress and damage the brain. Hydrocephalus can arise before birth…
Read the definitionRandom terms
Show more- Membrane A very thin layer of tissue that covers a surface.
- Amaurotic familial idiocy An outdated term for Tay-Sachs disease (TSD) which is concisely defined by OMIM (Online Mendelian Inheritance…
- Medication, antiprotozoal Something that destroys protozoa or inhibits their growth and ability to reproduce. A few of the protozoa of…
- PX Medical abbreviation for prognosis
- Van der Woude syndrome A genetic disorder characterized by pits of the lower lip and by cleft lip and/or cleft palate. It is the…
- Foot-and-mouth disease A disease caused by a highly infectious virus that can infect people but affects them most by infecting…
- T-helper cell A type of T cell that provides help to other cells in the immune response by recognizing foreign antigens and…
- Positive, false A result that is erroneously positive when a situation is normal. An example of a false positive: a…
- Cranial nerve VII The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge…
- BCNS Basal cell nevus syndrome, also known as the Gorlin syndrome
- Antisocial personality disorder Antisocial personality disorder: A pervasive pattern of disregard for and violation of the rights of others…
- Transition, menopause Menopause: A woman can usually tell if she is approaching menopause because her menstrual periods starts…