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).
Conjunctivitis
Inflammation of the conjunctiva, the membrane on the inner part of the eyelids and the membrane covering the white of the eye. The conjunctival membranes react to a wide range of bacteria, viruses, allergy-provoking agents, irritants and…
Read the definitionRandom terms
Show more- Rubella vaccine A vaccine designed to prevent rubella, or German measles. German measles was once seen merely as a child's…
- Placenta praevia A placenta implanted near the outlet of the uterus, so that at the time of delivery the placenta precedes the…
- Protean Very variable; easily changing; or continually changing. Protean is not to be confused with protein (a member…
- Trismus and pseudocamptodactyly syndrome See: Hecht syndrome
- Pathologist A doctor who identifies diseases by studying cells and tissues under a microscope
- Somatostatin A hormone widely distributed throughout the body, especially in the hypothalamus and pancreas, that acts as…
- Reactive oxygen species Species such as superoxide, hydrogen peroxide, and hydroxyl radical. At low levels, these species may…
- Incontinence, urge A sudden involuntary contraction of the muscular wall of the bladder causing urinary urgency, an immediate…
- Otopharyngeal tube The tube that runs from the middle ear to the pharynx, known also as the Eustachian tube. The function of…
- Histiocytic necrotizing lymphadenitis A disorder, also called Kikuchi disease, that typically causes 'swollen glands' in the neck (cervical…
- Bone, calf Familiar name for the fibula, the lateral (outside) and smaller of the two long bones in the lower leg. The…
- Spectrophobia An abnormal and persistent fear of ghosts. Sufferers of spectrophobia experience undue anxiety even though…