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).
Substance abuse
>A. A maladaptive pattern of substance use leading to clinically significant impairment or distress, as manifested by one (or more) of the following, occurring within a 12-month period:>Recurrent substance use resulting in a failure to…
Read the definitionRandom terms
Show more- Aggressive lymphoma A lymphoma that tends to grow and spread quickly and cause severe symptoms. In contrast to an indolent or…
- Iodine excess Just as too little iodine can cause thyroid disease, so may prolonged intake of too much iodine also lead to…
- Psychology The study of the mind and mental processes, especially in relation to behavior. There are a number of fields…
- Syndrome, MELAS MELAS is the acronym for Mitochondrial Encephalopathy, Lactic Acidosis, and Stroke-like episodes. MELAS is a…
- Disease, polycystic ovary See: Polycystic ovarian syndrome
- Waardenburg syndrome A genetic disorder that causes deafness, white forelock (a frontal white blaze of hair), a difference of…
- Fugue state The complete order of bases in a gene. This order determines which protein a gene will produce.
- Parathyroid hormone See Parathormone
- Tag, skin A small tag of skin that may have a stalk (a peduncle). Skin tags may appear on the skin almost anywhere…
- Glutathione S-transferase omega-1 An enzyme that remarkably influences the age of onset of symptoms of two common degenerative brain disorders…
- Surgery, stereotactic Surgery in which a system of three- dimensional coordinates is used to locate the site to be operated on…
- Matter, white The part of the brain that contains myelinated nerve fibers. The white matter is white because it is the…