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).
Renal stone
A stone in the kidney (or lower down in the urinary tract). Also called a kidney stone. Renal stones are a common cause of blood in the urine and pain in the abdomen, flank, or groin. Kidney stones occur in 1 in 20 people at some time in…
Read the definitionRandom terms
Show more- Test, pupil dilation An examination that enables an eye care professional to see more of the retina, the light-sensitive layer of…
- Hematuria, microscopic Blood in the urine that is visible only under a microscope. There is so little blood that it cannot be seen…
- X-linked On the X chromosome. 'Linked' in genetics does not mean merely associated. An X-linked gene travels with the…
- Internal genitalia, male See: Male internal genitalia
- Hansen bacillus Mycobacterium leprae, the agent of leprosy (Hansen disease)
- Discoid lupus A chronic inflammatory condition limited to the skin, caused by an autoimmune disease. An autoimmune disease…
- Retinoid Retinol is vitamin A. Carotene compounds (found, for example, in egg yolk, butter and cream) are gradually…
- Chromatids The daughter strands of a duplicated chromosome joined together by a centromere.
- Poland syndactyly A unique pattern of one-sided malformations characterized by a defect of the chest (pectoralis) muscle on one…
- Gland, bulbourethral See: Bulbourethral gland
- Memory 1. The ability to recover information about past events or knowledge. 2. The process of recovering…
- Directives, advance medical These documents pertain to treatment preferences and the designation of a surrogate decision-maker in the…