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).
Opportunistic condition
A condition that occurs especially or exclusively in persons with a weak immune system due, for example, to AIDS, cancer or immunosuppressive drugs, such as corticosteroids or chemotherapy. An opportunistic condition may be an infection…
Read the definitionRandom terms
Show more- Philippine hemorrhagic fever A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…
- Syndrome, Paterson-Kelly See: Plummer-Vinson syndrome
- Radon A radioactive element formed as a gas during the breakdown of radium.
- Microscopy The examination of minute objects by means of a microscope, an instrument which provides an enlarged image of…
- Nocebo A negative placebo effect as, for example, when patients taking medications experience adverse side effects…
- Heat syncope Sudden dizziness, feeling faint ans sometimes fainting experienced after exercising in the heat. The skin…
- Ice cream headache A headache that occurs when one puts ice, a cold food or chilled beverage in the mouth. Ice cream is by far…
- Congenital torticollis A deformity of the neck that is evident at birth. It is due to shortening of the neck muscles. Congenital…
- Pulmonary arterial hypertension See: Pulmonary hypertension
- Major histocompatibility complex See: Permanent makeup.
- Kinship Relationship by marriage or, specifically, a blood tie.
- Phantom vision Seeing images after total loss of eyesight