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).
Cascade
A sequence of successive activation reactions involving enzymes (enzyme cascade) or hormones (hormone cascade) characterized by a series of amplifications of an initial stimulus. In blood coagulation, for example, each enzyme activates the…
Read the definitionRandom terms
Show more- Kubler-Ross See: Kübler-Ross, Elisabeth
- Homosexuality 1 Trisomy of the same chromosome. The occurrence of two children in the same family with trisomy 21 is an…
- Mastectomy, subcutaneous Removal of breast tissue using a minimal incision. This type of mastectomy may be used to remove small areas…
- Hydroxyapatite crystal disease Hydroxyapatite crystal disease:The inflammation caused by hydroxyapatite crystals has been referred to as…
- Wharton's jelly A gelatinous substance within the umbilical cord. Wharton's jelly is a rich source of stem cells. Named for…
- Fetal pleural effusion In the fetus, excess fluid between the two membranes (the pleurae) that envelop the lungs. The pleural…
- Meatus An opening or passageway. For example, the female urethral meatus. The urethra is the transport tube from the…
- Charles Bell See: Bell, Charles
- Paraoxonase An enzyme associated with high-density lipoprotein (HDL) that is believed to protect against the oxidation of…
- MME Metallomembrane endopeptidase, also known as membrane metalloendopeptidase
- D & C Dilatation and curettage, a minor operation in which the cervix is expanded enough (dilatation) to permit the…
- Syndrome, Proteus A disturbance of cell growth including benign tumors under the skin, overgrowth of the body, often more on…