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).
Macrocephaly
An abnormally large head. The opposite of macrocephaly is microcephaly (an abnormally small head)
Read the definitionRandom terms
Show more- Undulate To have a wavy border or form. Also, to rise and fall like a wave. For example, the border of a wound may…
- Indicate In medicine, to make a treatment or procedure advisable because of a particular condition or circumstance…
- Roentgen ray Term coined around 1890 that preceded X-ray and is now synonymous with it. Named for Wilhelm Roentgen, a…
- Cholestasis with peripheral pulmonary stenosis Also known as arteriohepatic dysplasia or Alagille syndrome, this ia a genetic disorder characterized by…
- Typhus, murine An acute infectious disease with fever, headache, and rash, all quite similar to, but milder than, epidemic…
- Canine heartworm Dirofilaria immitis. See: Heartworm
- Primary teeth The first teeth which are shed and replaced by permanent teeth. The first primary tooth comes in at about 6…
- Dislocated shoulder See: Shoulder dislocation
- Antibody cross reactivity The ability of an antibody to react with similar antigenic sites on different proteins
- Receptor, visual The layer of rods and cones, the visual cells, of the retina
- Valsalva 1. The Valsalva maneuver in which a person tries to exhale forcibly with a closed glottis (windpipe) so that…
- Syndrome, battered child A disease in which children are physically abused. The battered child syndrome is a form of child abuse. Not…