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).
Insomnia, transient
Insomnia that usually lasts less than a week and does not recur. If it recurs from time to time, the insomnia is considered intermittent. If the insomnia affects most nights and lasts a month or more, it is considered chronic insomnia…
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Show more- Endotracheal tube A flexible plastic tube that is put in the mouth and then down into the trachea (the airway). The doctor…
- ND An extinct subspecies of Homo sapiens who lived in Europe and the area around the Mediterranean from 100,000…
- Methadone A synthetic opiate. The most common medical use for methadone is as a legal substitute for heroin in…
- Test, Rorschach A psychological test involving inkblots. The inkblots are used to determine what a person perceives (reads…
- Pediatric arthritis See: Arthritis, systemic-onset juvenile rheumatoid
- Y chromosome The sex chromosome found together with an X chromosome in most normal males. Once thought to be a genetic…
- Myotonic dystrophy 2 See: Myotonic dystrophy type 2
- Dolor 1. Pain, one of the four classic signs of inflammation (together with calor, rubor and tumor). 2. By…
- Smith-Lemli-Opitz syndrome A multiple congenital malformation syndrome caused by an abnormality in cholesterol metabolism, deficiency of…
- Adenoma colon family history See: Colon cancer family history
- Contractions, Braxton Hicks Irregular contractions of the womb (the uterus) occurring towards the middle of pregnancy in the first…
- Pythagoras (Born c. 580 B.C.E.) Greek philosopher and mathematician who promoted health through a special vegetarian diet