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).
In vitro
Literally in glass, as in a test tube. A test that is performed in vitro is one that is done in glass or plastic vessels in the laboratory. In vitro is the opposite of in vivo (in a living organism).
Read the definitionRandom terms
Show more- Myocyte A muscle cell. From myo-, muscle + -cyte, cell = muscle cell. 'Remaining young at heart is a desirable but…
- Sex region Y A region on the Y chromosome that determines the sex of the individual. This region which goes by the symbol…
- Kinsey Report A report entitled 'Sexual Behavior in the Human Male' published by Alfred Charles Kinsey's in 1948 that…
- Tattoo >non-reactive pigments; >sterile, disposable needles; and >sterile work conditions. Without these…
- Xanthoma, planar A type of xanthoma characterized by flat yellow-to-orange patches or pimples that cluster together on the skin
- Epicondylitis, lateral See: Tennis elbow
- Multifocal Having to do with two or more foci or arising from two or more places. For example, aortic aneurysm disease…
- Bone, collar A horizontal bone above the first rib that makes up the front part of the shoulder. The collarbone, also…
- Polyhydramnios Too much amniotic fluid.
- Dacryocystorhinostomy The surgical creation of a passage between the lacrimal sac (tear sac) and the nasal cavity to permit the…
- Drug, sulfa One of the sulfonamides, the sulfa-related antibiotics which are used to treat bacterial and some fungal…
- Berzelius See: Berzelius, Jons Jacob