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).
Sebaceous cyst
A sebaceous cyst is a rounded swollen area of the skin formed by an abnormal sac of retained excretion (sebum) from the sebaceous follicles.
Read the definitionRandom terms
Show more- Cranial dystonia A term used to describe dystonia that affects the muscles of the head, face, and neck. Oromandibular dystonia…
- Impotence Impotence: A common problem among men characterized by the consistent inability to sustain an erection…
- Reactant, acute phase See: Acute-phase protein
- Hypermobility syndrome Hypermobility syndrome: A common benign childhood condition involving hypermobile joints (that can move…
- Vaccination, chickenpox See Chickenpox immunization
- Boomeritis Injuries to older amateur athletes, especially those who are part of the Baby Boom, born when there was a…
- Vein, central retinal The blood vessel that carries blood away from the retina of the eye. The counterpart to the central retinal…
- Syndrome, sicca An autoimmune diseases, also known as Sjogren syndrome, that classically combines dry eyes, dry mouth, and…
- Alien hand syndrome Syndrome: The feeling that one's hand is possessed by a force outside of ones control. The syndrome typically…
- Caspase 3 An enzyme that plays a key role in programmed cell death, or apoptosis. Caspase 3 has been called the…
- Paralytic ileus Paralysis of the intestine. To be termed 'paralytic ileus,' the intestinal paralysis need not be complete…
- Oligoarthritis Inflammation of four or fewer joints