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).
Blood in the eye
Medically known as a subconjunctival hemorrhage. A very common cause of a painless bloody eye usually first noticed by somebody else or by the person with it when they look in the mirror. The bleeding results from a break in a small blood…
Read the definitionRandom terms
Show more- Infertility Infertility: The diminished ability or the inability to conceive and have offspring. Infertility is also…
- Contrast sensitivity, visual The ability to perceive differences between an object and its background
- Rate, fetal mortality The ratio of fetal deaths divided by the sum of the births (the live births + the fetal deaths) in that year…
- RF Rheumatoid factor. Rheumatoid factor is an antibody that is measurable in the blood. It is commonly used as a…
- Hamstring The prominent tendons at the back of the knee. They are the sidewalls of the hollow behind the knee. (This…
- Neck pain Neck pain: Neck pain is the sensation of discomfort in the neck area. Neck pain can result from disorders of…
- Macular vision The macula is a special area in the center of the retina, the light-sensitive layer of tissue at the back of…
- Shock, hypovolemic Shock due to a decrease in blood volume. This is the #1 cause of shock. It can be due to loss of blood from…
- Ectopic pregnancy Ectopic pregnancy: A pregnancy that is not in the uterus. The fertilized egg settles and grows in any…
- Parietal Adjective from the Latin 'parietalis' meaning 'belonging to the wall' that the ancient anatomists used to…
- Bone, cranial Part of the top portion of the skull which protects the brain. The bones of the cranium include the frontal…
- Klumpke palsy A form of brachial plexus palsy in which there is paralysis of the muscles of the forearm and hand due to an…