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).
Hamstring
The prominent tendons at the back of the knee. They are the sidewalls of the hollow behind the knee. (This hollow is called the popliteal space). Both hamstrings connect to muscles that flex the knee. A pulled hamstring is a common…
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Show more- Melanoma, choroidal Malignant melanoma that arises in the eye. See ocular melanoma
- Fluorescent in situ hybridization An important molecular cytogenetic method for identifying chromosomes and parts of chromosomes, deciphering…
- External genitalia, female See: Female external genitalia
- Jordi Casals-Ariet See: Casals-Ariet, Jordi
- Hydrocephalus, Macewen sign of A sign to detect hydrocephalus (and brain abscess). Percussion (tapping) on the skull at a particular spot…
- Hallucination, hypnagogic See: Hypnagogic hallucination
- Span, memory The number of items, usually words or numbers, that a person can retain and recall. Memory span is a test of…
- Base sequence The order of the nucleotide bases -- adenine (A), thymine (T), guanine (G), and cytosine (C) -- in a DNA…
- Eye Institute, National (NEI) One of the US National Institutes of Health, NEI's mission is to 'conduct and support research, training…
- Post-exposure prophylaxis A treatment administered following exposure to a harmful agent which attempts to block or reduce injury or…
- Eagle syndrome Inflammation of the styloid process, a spike-like projection sticking off the base of the skull. The tissues…
- Williams syndrome See: Circle of Willis.