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).
Arteriosclerosis
Hardening and thickening of the walls of the arteries. Arteriosclerosis can occur because of fatty deposits on the inner lining of arteries (atherosclerosis), calcification of the wall of the arteries, or thickening of the muscular wall of…
Read the definitionRandom terms
Show more- Pre-sleep dream Also called a hypnagogic hallucination, this type of dream is characteristically vivid and occurs as one is…
- Hypomania A condition similar to mania but less severe. The symptoms are similar with elevated mood, increased…
- Watson See: Watson, James
- Ciliary muscle One of the muscles that relax the zonules to enable the lens to change shape for focusing. The zonules are…
- Parathyroids, hypoplasia of the thymus and See: DiGeorge syndrome
- Abortion, induced An abortion that is brought about intentionally. Also called an artificial or therapeutic abortion. As…
- Incontinence, urinary Incontinence, urinary: The unintentional loss of urine. Inability to hold urine in the bladder due to loss of…
- Granuloma annulare The definition of granuloma annulare in one of the standard print medical dictionaries begins: 'a benign…
- Periventricular leukomalacia, cystic Softening of the white matter near the ventricles of the brain resulting in abnormal cysts. Cystic…
- T-suppressor count A test that counts the number of T-suppressor (T-8) cells in the bloodstream. It appears that some T-8 cells…
- Chlamydia trachomatis A bacterium that causes a disease called trachoma that results in blindness so frequently that it places a…
- Pharynx The hollow tube about 5 inches long that starts behind the nose and ends at the top of the trachea (windpipe)…