MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Scan, computerized tomography
Pictures of structures within the body created by a computer that takes the data from multiple X-ray images and turns them in pictures. The computerized tomography (CT) scan can reveal some soft-tissue and other structures that cannot be…
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Show more- Hydrocephalus, congenital Hydrocephalus present at birth
- Cancer, bone A malignancy in bone. Primary bone cancer, one that begins in bone, is uncommon but it is not unusual for a…
- Vasopressin A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after…
- Euthyroid The state of having normal thyroid gland function. As opposed to hyperthyroid (overactive thyroid) and…
- Fever, dengue hemorrhagic (DHF) A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…
- Echocardiography Echocardiography is a diagnostic test which uses ultrasound waves to make images of the heart chambers…
- Melanosis coli Melanosis coli (Pseudomelanosis coli): A benign, reversible condition usually, but not always, associated…
- Nervous system, parasympathetic A part of the nervous system that slows the heart rate, increases intestinal and gland activity, and relaxes…
- Temporomandibular joint disorder (TMJ) Temporomandibular joint disorder (TMJ): A disorder of the temporomandibular joint(s) that causes pain…
- Hereditary spherocytosis A genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing)…
- Contraindicate To make a treatment or procedure inadvisable because of a particular condition or circumstance. For examples…
- Scratch test for allergy A mammogram (an X-ray of the breast) in women who have no signs of breast cancer. It usually involves two…