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).
Steroid abuse
Steroid abuse: Use of substances containing anabolic steroids to increase muscle mass. Such steroids can have many side effects when misused, including psychiatric problems, liver tumors, reduction in the size of the male genitals and…
Read the definitionRandom terms
Show more- Microscope, simple A microscope that has a single converging lens (or a combination of lenses that function optically as a…
- Aging The process of becoming older, a process that is genetically determined and environmentally modulated…
- Good Samaritan Someone who voluntarily helps someone else who is in distress. The term 'Good Samaritan' comes from the…
- Gamma ray High-energy electromagnetic radiation emitted by certain radionuclides when their nuclei transition from a…
- Triptan A class of drugs introduced in the 1990s for the treatment of migraine that act as agonists for…
- Bottlefeeding The use of a substitute for breast milk for feeding infants. Pediatricians generally advise exclusively…
- Phototherapy Treatment with light. For example, a newborn with jaundice may be 'put under the lights.'
- Photosensitivity In medicine, increased sensitivity of the skin to light and other sources of UV.Photosensitivity commonly…
- Stickler-Wagner syndrome See: Stickler syndrome
- Decubitus ulcer A bed sore, a skin ulcer that comes from lying in one position too long so that the circulation in the skin…
- Arachnodactyly Long spider-like fingers and toes, a frequent finding in Marfan syndrome, a heritable disorder of connective…
- Rosary pea See: Abrin