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).
Drug, over-the-counter (OTC)
A drug for which a prescription is not needed
Read the definitionRandom terms
Show more- Liquor cerebrospinalis See: Cerebrospinal fluid
- Erythromycin Erythromycin: Erythromycin is a common antibiotic for treating bacterial infection. Sold under many brand…
- Metastasize The spread from one part of the body to another. When cancer cells metastasize and cause secondary tumors…
- Lateral femoral cutaneous nerve syndrome See: Meralgia paresthetica
- Resectable Able to be removed (resected) by surgery
- Speech therapist An older term for a speech- language pathologist
- Alternative splicing A mechanism by which different forms of mature mRNAs (messengers RNAs) are generated from the same gene…
- Okihiro syndrome The association of Duane syndrome (eye retraction) with forearm malformation and deafness. Okihiro syndrome…
- Patellar tendon A tendon that extends down from the quadriceps muscle in the thigh to incorporate the patella (the kneecap)…
- Peyronie disease A syndrome of craniosynostosis (premature fusion of the cranial sutures) due to mutation in FGFR (fibroblast…
- Tunica albuginea of the testis The layer of dense whitish inelastic tissue that surrounds the testis
- Nicotinic acid Deficiency of nicotinic acid (also known as niacin), one of the B-complex vitamins, causes pellagra. Pellagra…