MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Blepharospasm
Involuntary forcible closure of the eyelids. The first symptom may be uncontrollable blinking. Only one eye may be affected initially, but eventually both eyes are usually involved. The spasms may leave the eyelids completely closed…
Read the definitionRandom terms
Show more- Hematuria, microscopic Blood in the urine that is visible only under a microscope. There is so little blood that it cannot be seen…
- Enkephalinase See: Metallomembrane endopeptidase
- Mismatch repair A system within the cell for correcting errors in DNA that works by detecting and replacing bases in the DNA…
- Naegleria fowleri A protozoa that is a pathogenic free-living ameba. Infection with Naegleria fowleri causes primary amebic…
- Globus A word straight from the Latin, meaning (not unexpectedly) a globe or sphere. The word 'globus' is used in a…
- Syndrome, nail-patella See Nail-patella syndrome
- Methadone treatment program A program for opiate addicts, usually conducted in an outpatient setting. These programs use a long-acting…
- Oxyhemoglobin The oxygen-loaded form of hemoglobin, the predominant protein in red blood cells. Hemoglobin is a protein…
- Peyronie disease A syndrome of craniosynostosis (premature fusion of the cranial sutures) due to mutation in FGFR (fibroblast…
- Managed care Any system that manages healthcare delivery with the aim of controlling costs. Managed care systems typically…
- Estrogen, designer See: Designer estrogen
- Thymine (T) One member of the base pair A-T (adenine-thymine) in DNA.