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.
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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).
Tay-Sachs disease
A genetic metabolic disorder caused by deficiency of the enzyme hexosaminidase A (hex-A) that results in a failure to process a lipid called GM2 ganglioside that accumulates in the brain and other tissues. Abbreviated TSD. The classic form…
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Show more- Pro time The pro time (or, more properly, the prothrombin time) is a test of the integrity of part of the clotting…
- Assistant, physician (PA) >Medical histories and physical examinations: a PA is usually can perform histories and physical examinations…
- Atrial septum The wall between the two upper chambers (the right and left atrium) of the heart
- Overactive bladder Overactive bladder: A sudden involuntary contraction of the muscular wall of the bladder causing urinary…
- Scarlet fever Also called scarlatina, a disease caused by infection with group A streptococcal bacteria that occurs in a…
- Fibroma, desmoplastic A rare type of primary bone tumor characteristically composed of well-differentiated cells that produce…
- Gland, sweat The sweat (sudoriferous) glands are small tubular structures situated within and under the skin (in the…
- Digital rectal exam ): An exam to detect abnormalities that can be felt (palpated) from within the rectum. The doctor inserts a…
- Pax3 One in a family of Pax genes involved in regulating embryonic development at the level of transcription. The…
- Livid Black and blue.
- CTS One of a group of proteins that regulate the cell cycle. The cyclins bind to and activate cyclin-dependent…
- Biofluid A biological fluid. Biofluids can be excreted (such as urine or sweat), secreted (such as breast milk or…