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).
Vertebrae, sacral
There are 5 sacral vertebral bones. They are represented by the symbols S1 through S5 and are situated between the lumbar vertebrae and the coccyx (the lowest segment of the vertebral column). The sacral vertebrae are normally fused to…
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Show more- Thyroid cancer Thyroid cancer: Cancer of the gland in front of the neck that normally produces thyroid hormone which is…
- Non-inferiority clinical trial A clinical trial that shows that a new treatment is equivalent to standard treatment. Also called a…
- Phthisis A good trivia or crossword item. An over-consonanted Greek word meaning 'a dwindling or wasting away.'…
- Fear of self An irrational fear of oneself, an intense self-fear that is groundless. Fear of oneself is termed…
- Leech therapy The use of leeches in medical treatment. Once used as an almost universal cure, leeches were largely…
- Pee An informal term for piss, meant to lessen its vulgarity, but synonymous with it
- Angiotensin A family of peptides (smaller than proteins) that act as vasoconstrictors to narrow blood vessels
- Test, syphilis (RPR) Rapid plasma reagin, a blood test for syphilis that looks for an antibody that is present in the bloodstream…
- Hematology-oncology The diagnosis, treatment and prevention of blood diseases (hematology) and cancer (oncology) and research…
- Heterotaxy The abnormal placement of organs due to failure to establish the normal left-right patterning during…
- Varco See: Varco, Richard L.
- NICHD A silver-white metallic element. Long-term exposure to nickel, such as from jewelry, can cause a form of…