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).
Ophthalmology
The art and science of eye medicine.
Read the definitionRandom terms
Show more- Bones of the skeleton The human body has 206 bones. These consist of 80 axial (head and trunk) bones and 126 appendicular (upper…
- Erotomania The false but persistent belief that one is loved by a person (often a famous or prominent person), or the…
- Babinski response An important neurologic examination based upon what the big toe does when the sole of the foot is stroked. If…
- Regulatory gene A gene that regulates the expression of other genes. A regulatory gene is a nosy gene whose prime…
- Vitamin D A steroid vitamin which promotes the intestinal absorption and metabolism of calcium and phosphorus. Under…
- Vaccination, chickenpox See Chickenpox immunization
- Bee sting Stings from bees and other large stinging insects such as yellow jackets, hornets and wasps can trigger…
- Calor Heat, one of the four classic signs of inflammation (together with dolor, rubor and tumor). From the Latin…
- Nerve, pressor A pressor nerve is a nerve which, when stimulated, causes the blood pressure to rise. The word 'pressor'…
- Headache, thunderclap A sudden and excruciatingly painful headache. Some doctors feel that in the absence of a known headache…
- DEA Every prescription written in the United States bears a DEA number, that of the prescribing doctor, the DEA…
- Cyclooxygenase inhibitor See: Cox-1 inhibitor; Cox-2 inhibitor