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).
Regulatory region
A region of a chromosome that controls gene expression. In terms of DNA, it is a regulatory sequence
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Show more- Lining, uterine The inner layer of the uterus (womb); the cells that line the womb; anatomically termed the endometrium. This…
- Virus, human immunodeficiency (HIV) The cause of AIDS. HIV has also been called the human lymphotropic virus type III, the lymphadenopathy-…
- Myoglobin The pigment in muscle that carries oxygen.
- Croup Croup: A respiratory problem that occurs mainly in children, particularly from 2 to 4 years of age, due to an…
- Thoracic vertebrae The 12 thoracic vertebrae are situated between the cervical (neck) vertebrae and the lumbar vertebrae. The…
- Xenobiotic Natural substances that are foreign to the body
- Deficiency, selenium Lack of the essential mineral selenium, which can cause Keshan disease, a fatal form of cardiomyopathy…
- Vaginal yeast infection Infection of the vagina caused by a fungus known as Candida. A yeast vaginal infection is characterized by…
- Sinus barotrauma Sinus troubles, particularly with pain and a feeling of pressure, due to changing atmospheric pressures, as…
- Rodenticidal Capable of killing rats or other rodent pests or preventing them from damaging food, crops, etc
- Deer mouse A deceptively cute rodent capable of carrying the types of hantavirus that cause HPS (hantavirus pulmonary…
- Hereditary spherocytosis A genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing)…