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.
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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).
TPH2
Tryptophan hydroxylase 2, also known as neuronal tryptophan hydroxylase (NTPH), the key rate-limiting enzyme in the synthesis of serotonin (5-hydroxytryptamine, or 5HT). 5HT is causally involved in numerous activities in the central…
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Show more- Breech birth Literally, delivery of the baby by the buttocks first, rather than the head as is usual. Breech birth is more…
- False labor Intermittent non-productive muscular contractions of the womb (uterus) during pregnancy, most commonly in the…
- Ciliary body melanoma See: Intraocular melanoma
- Sperm stem cell A cell that is incapable of fertilizing an egg cell but can give rise to cells that develop into sperm. Sperm…
- Parasitosis Infestation or infection with parasites. See also: Delusional parasitosis
- Physiologic stress test Stress test: Although there can be a diversity of physiologic stress tests, this refers here to a physiologic…
- Beta blocker A class of drugs that block beta-adrenergic substances such as adrenaline (epinephrine) in the 'sympathetic'…
- Microdosimetry A technique for measuring the microscopic distribution of energy, useful with different types of radiation…
- Gastric outlet The exit from the stomach through the pyloric channel and duodenum
- Bladder infection Infection of the urinary bladder. Some people are at more risk for bladder and other urinary tract infections…
- Strontium An earth element and metal with atomic no. 38, atomic wt. 87.62 that is used in a radioactive form for…
- Multifocal Having to do with two or more foci or arising from two or more places. For example, aortic aneurysm disease…