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).
C4 (cervical vertebra)
The fourth cervical (neck) vertebra from the top
Read the definitionRandom terms
Show more- Sclerose en plaques See: Sclerose en plaques
- Prosthodontist A dentist with special training in making replacements for missing teeth or other structures of the oral…
- Familial advanced sleep-phase syndrome (FASPS) An inherited abnormal sleep pattern in which the individual is a 'morning lark' and consistently goes to…
- Distal The more (or most) distant of two (or more) things. For example, the distal end of the femur (the thigh bone)…
- Acquired immunity Immunity acquired by infection or vaccination (active immunity) or by the transfer of antibody or lymphocytes…
- Contraceptive, combined oral Commonly called 'the pill,' combined oral contraceptives are the most commonly used form of reversible birth…
- Leonardo da Vinci Architect, engineer, inventor, painter and the father of anatomic art. Leonardo da Vinci first became…
- Disease, chronic wasting See Chronic wasting disease
- Aortal Pertaining to the aorta, the largest artery in the body. Aortal is not often encountered (except in The New…
- Fasciolopsiasis Infection with Fasciola flukes such as Fasciolopsis buski. See: Fasciolopsis
- Leucovorin Folinic acid, the active form of folic acid in the body. Used as an antidote to protect normal cells from…
- Dementia, hereditary multi-infarct See CADASIL