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.
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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).
Prenatal development
The process of growth and development within the womb, in which a single-cell zygote (the cell formed by the combination of a sperm and an egg) becomes an embryo, a fetus, and then a baby. The first two weeks of development are concerned…
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Show more- Otoplasty Otoplasty: Plastic surgery to reshape the outer ear.
- Arcus senilis A cloudy opaque arc or circle around the edge of the eye, often seen in the eye of the elderly.
- Stenotic Narrowed, as in a stenotic artery. From the Greek 'stenos' meaning narrow
- Reduction division The first cell division in meiosis, the process by which germ cells are formed. A unique event in which the…
- Infarct An area of tissue death due to a local lack of oxygen. For example, in a myocardial infarction there is death…
- Contralateral On the other side. The contralateral breast is the breast on the other breast. A stroke affecting the right…
- Sensation In medicine and physiology, sensation refers to the registration of an incoming (afferent) nerve impulse in…
- Murray Valley encephalitis A viral encephalitis first recognized in the Murray Valley, in Victoria, Australia, caused by a flavivirus…
- Alpha-defensin See: Defensin
- Cranial nerve XI The eleventh cranial nerve is the accessory nerve. The twelve cranial nerves, the accessory nerve included…
- MRSI Magnetic resonance spectroscopic imaging
- Trochanter One of the bony prominences toward the near end of the thigh bone (the femur). There are two trochanters: >…