MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Post-term infant
An overly mature baby that has not been born until well after the usual term pregnancy. A post-term baby is one born 2 weeks (14 days) or more after the usual 9 months (280 days) of gestation. The gestation (length of the pregnancy) is…
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Show more- Cheiroarthropathy A syndrome of limited joint mobility that occurs in patients with diabetes. Cheiroarthropathy is…
- Discordant couple A pair of long-term sexual partners in which one has a sexually transmitted infection and the other does not…
- Hormone, antidiuretic (ADH) A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after…
- Vasomotor Relating to the nerves and muscles that cause the blood vessels to constrict or dilate
- Atriodigital dysplasia See: Holt-Oram syndrome
- Herpesvirus One of a family of double-stranded DNA viruses that cause common infections in humans. These include: herpes…
- Thiamine Vitamin B1. Thiamine (vitamin B1) acts as a coenzyme in the metabolism of the body. Deficiency of thiamine…
- Chronic This important term in medicine comes from the Greek chronos, time and means lasting a long time. A chronic…
- Abortion, spontaneous A miscarriage, that is, any pregnancy that is not viable (the fetus cannot survive) or in which the fetus is…
- Psoralen Any of a number of drugs and other substances containing chemicals that react with ultraviolet (UV) light to…
- Avian tuberculosis See: Tuberculosis, avian
- Compression fracture A fracture caused by compression, the act of pressing together. Compression fractures of the vertebrae are…