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).
Headache, tension
A headache caused by contracting of the muscles in the back of the neck, on the scalp, and sometimes in the jaw. Tension headaches are usually related to stress. Treatment is via stress reduction, massage, and analgesic medication, such as…
Read the definitionRandom terms
Show more- Stress testing, exercise cardiac The exercise cardiac stress testing (ECST) is the most widely used cardiac (heart) screening test. The…
- Positive clinical trial A clinical trial that shows that the new treatment has a large beneficial effect and is superior to standard…
- Pharynx The hollow tube about 5 inches long that starts behind the nose and ends at the top of the trachea (windpipe)…
- Lumpectomy The surgical removal of a small tumor (a lump) which may or may not be benign (or malignant). Lumpectomy has…
- Niemann-Pick disease type A The classical infantile form of the disease. See: Niemann-Pick disease
- Speckled iris Due to little white (or lightly colored) spots that are slightly elevated on the surface of the iris. These…
- Parvovirus B19 See: Fifth disease
- MTX Abbreviation for methotrexate
- X (drug caution code) Abbreviation on a medication that indicates SOS -- that the medication contains a substance such as…
- Chronic wasting disease A transmissible spongiform encephalopathy (TSE) of North American deer and elk, a progressive…
- DNA sequence, draft Sequence of a DNA with less accuracy than a finished sequence. In a draft sequence, some segments are missing…
- Parathyroid gland A gland that regulates calcium, located behind the thyroid gland in the neck. The parathyroid gland secretes…