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).
Sickness, altitude
>If possible, don't fly or drive to high altitude. Start below 10,000 feet (3,048 meters) and walk up. >If you do fly or drive, do not over-exert yourself or move higher for the first 24 hours. >If you go above 10,000 feet (3,048 meters)…
Read the definitionRandom terms
Show more- Campylobacteriosis Disease caused by Campylobacter jejuni, now the leading cause of bacterial food poisoning, most often spread…
- Community-acquired infection An infection acquired in the community. In contrast to a nosocomial (hospital-acquired) infection
- Ornithine An amino acid that is not found in protein but is important in the formation of urea and the disposal of…
- Monocyte chemotactic and activating factor See: MPC1
- INR Stings from large stinging insects such as bees, hornets, yellow jackets and wasps can trigger allergic…
- Radiation, ultraviolet Invisible rays that are part of the energy that comes from the sun. Ultraviolet radiation can burn the skin…
- Lentigo maligna melanoma See: Melanoma, lentigo maligna
- Congenital ptosis of the eyelids Drooping of the upper eyelids at birth. The lids may droop only slightly or they may cover the pupils and…
- Type II error The statistical error (said to be 'of the second kind' or beta error) made in testing an hypothesis when it…
- Nipple confusion A problem that may beset a bottlefed baby in which it forgets how to nurse on mother's nipple. Breastfeeding…
- Heterotopic In the wrong place, in an abnormal place, misplaced. From the Greek roots 'hetero-' meaning 'other' + 'topos'…
- Vein, external jugular The more superficial of the two jugular veins situated on each side of the neck. The other is the internal…