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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Muscle, psoas
Muscles of the lower back (the loin). There are two psoas muscles on each side of the back. The larger of the two is called the psoas major and the smaller the psoas minor. The psoas major originates at the spine around the bottom of the…
Read the definitionRandom terms
Show more- Family history of colon polyps See: Colon cancer family history
- Latham bowl A blood-processing instrument that uses centrifugal force to separate blood into its components: red blood…
- Bulbourethral gland Also called Cowper's gland. A pea-sized gland in the male located behind and to the side of the urethra that…
- Reinnervate To restore nerve function after it has been lost. See: Reinnervation
- Formaldehyde A pungent gas, with the chemical formula HCHO, used as an antiseptic, disinfectant, and especially today as a…
- Otic barotrauma Middle ear problems due to changing atmospheric pressures, as when a plane descends to land. The problems…
- Schizophrenia, childhood Schizophrenia, childhood: The onset of schizophrenia before adulthood. This condition is very rare in young…
- Syndrome, Gower (situational syncope) The temporary loss of consciousness in particular kinds of situations. (Syncope is temporary loss of…
- Congenital osseus-torticollis syndrome See: Klippel-Feil sequence
- Pressor Causing a rise in blood pressure. A pressor base is a substance (chemically classified as a base) capable of…
- Heteroclite Deviating from the ordinary; irregular or abnormal; anomalous. As, for example, retroviruses represent a…
- Southeast Asian hemorrhagic fever A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…