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).
Vitamin B12
A vitamin important for the normal formation of red blood cells and the health of the nerve tissues. Undetected and untreated vitamin B12 deficiency can lead to anemia and permanent nerve and brain damage. Pernicious anemia is a blood…
Read the definitionRandom terms
Show more- Collagen Collagen is the principal protein of the skin, tendons, cartilage, bone and connective tissue
- Maculopathy, cellophane See: Macular pucker
- Cardiac septum The septum of the heart is the dividing wall between the right and left sides of the heart. That portion of…
- Hygiene hypothesis A hypothesis that states that exposure to allergens in the environment early in life reduces the risk of…
- Genotoxin A poisonous substance which damages DNA. A genotoxin can cause mutations in DNA (and so be a mutagen), it can…
- Cephaly Familiar abbreviation of the name of one of the cephalic disorders, a series of congenital condition that…
- Locoregional Limited to a local region. See also: Locoregional anesthesia; Locoregional metastasis
- Vocal tremor Tremor: Trembling or shaking of one or more of the muscles of the larynx (the voice box), resulting in an…
- High blood pressure High blood pressure: Also known as hypertension, high blood pressure is, by definition, a repeatedly elevated…
- Cranial nerve, sixth The sixth cranial nerve is the abducent nerve. It is a small motor nerve that has one task: to supply a…
- Rheumatologist A specialist in the non-surgical treatment of rheumatic illnesses, especially arthritis. Rheumatologists have…
- Lynch syndrome See: Hereditary nonpolyposis colon cancer