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).
Ultraviolet A
One of the three types of invisible light rays (together with ultraviolet B and ultraviolet C) given off by the sun. Although ultraviolet C is the most dangerous type of ultraviolet light in terms of its potential to harm life on earth, it…
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Show more- Specific developmental disorder A disorder that selectively affects one area of development, sparing essentially all other areas of…
- Subclavian steal An illness that stays below the surface of clinical detection. A subclinical disease has no recognizable…
- Anisocytosis Excessive inequality in the size of the red blood cells. Anisocytosis ('aniso') is apparent on a blood smear…
- Trochanter One of the bony prominences toward the near end of the thigh bone (the femur). There are two trochanters: >…
- Roentgenology Radiology, the science of radiation and, specifically, the use of both ionizing (like X-ray) and nonionizing…
- Vestibular 1) Having to do with a structure that is a vestibule (entrance), such as the vestibule of the ear. 2) Having…
- Equinophobia An abnormal and persistent fear of horses. Sufferers of equinophobia experience undue anxiety even when a…
- Primary immunodeficiency disease A disorder caused by an inherited flaw in the immune system that increases the susceptibility to infections…
- Abruption A sudden breaking off or away. Abruption of the placenta (abruptio placentae) is the premature separation of…
- Melissophobia Fear of bees. A phobia is an unreasonable sort of fear that can cause avoidance and panic. Phobias are a…
- Fetoscope (1) A flexible fiberoptic device used to view or operate upon a fetus within the womb (to do fetal…
- Critical care Intensive care. The specialized care of patients whose conditions are life-threatening and who require…