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).
In vivo
In the living organism, as opposed to in vitro (in the laboratory).
Read the definitionRandom terms
Show more- Temporal arteritis Also called giant cell arteritis or cranial arteritis, this is a serious disease characterized by…
- Melanocyte A pigment-producing cell in the skin, hair and eye that determines their color. The pigment that melanocytes…
- Klippel-Feil anomaly See: Klippel-Feil sequence
- Aseptic The absence of microorganisms. By contrast, something that just discourages the growth of microorganisms is…
- Height growth See: Normal growth
- Dystrophic epidermolysis bullosa A blistering skin condition inherited in both autosomal dominant and recessive manners and in which the…
- Gynecoid pelvis The gynecoid pelvis is one that is generally characteristic of a woman in its bone structure and therefore…
- Marijuana Marijuana: A very common street and recreational drug that comes from the marijuana plant. The plant that…
- Lipoma A benign fatty tumor.
- Hydrocephalus, normal pressure See: Normal pressure hydrocephalus
- Gene, transporter A gene that allows drugs to enter cells or, in some cases, acts to keep them out. Transporter genes may…
- Prostate enlargement Most prostatic enlargement is due to benign prostatic hyperplasia (BPH), a problem that bothers men…