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).
Radioisotope
A version of a chemical element that has an unstable nucleus and emits radiation during its decay to a stable form. Radioisotopes have important uses in medical diagnosis, treatment, and research. A radioisotope is so-named because it is a…
Read the definitionRandom terms
Show more- Test, sweat chloride See: Sweat test
- Angle-closure glaucoma, acute Increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) blockage of the…
- Trimester The nine months of pregnancy is traditionally divided into three trimesters: distinct periods of roughly…
- Thyroiditis, autoimmune See: Hashimoto thyroiditis
- Hysterosalpingogram (HSG) A hysterosalpingogram imaging test that is used to examine the cavity of the uterus and Fallopian tubes. In a…
- Microhematuria Hematuria means blood in the urine and microhematuria refers to hematuria that is visible only under a…
- Psychology, clinical A professional specialty concerned with diagnosing and treating diseases of the brain, emotional disturbance…
- Scan As a noun, the data or image obtained from the examination of organs or regions of the body by gathering…
- Graft Healthy skin, bone, or other tissue taken from one part of the body to replace diseased or injured tissue…
- Antisense In molecular biology, the strand complementary to a coding sequence of a nucleic acid. Antisense DNA is the…
- Nodule A small solid collection of tissue, a nodule is palpable (can be felt). It may range in size from greater…
- Fever, dengue An acute mosquito-borne viral illness of sudden onset that usually follows a benign course with headache…