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).
Platelet count
The calculated number of platelets in a volume of blood, usually expressed as platelets per cubic millimeter (cmm) of whole blood. Platelets are the smallest cell-like structures in the blood and are important for blood clotting and…
Read the definitionRandom terms
Show more- Biomagnetic therapy See: Magnet therapy
- Meiosis The process of germ cell formation. During meiosis, each chromosome pairs with the other chromosome in the…
- Ophthalmic artery The ophthalmic artery supplies blood to the eye and adjacent structures of the face. It arises from the…
- Medicare Part B The Medicare program that covers physician and outpatient services. Medicare is the United States…
- Manorexia A term that has been used to refer to anorexia nervosa in males. This is not an officially recognized medical…
- Gliosis A process leading to scars in the central nervous system that involves the production of a dense fibrous…
- Pedophobia An abnormal and persistent fear of babies and children. Sufferers experience anxiety even though they realize…
- Aortic valve, bicuspid Whereas the normal aortic valve in the heart has three flaps (cusps) that open and close, a bicuspid valve…
- Disease, chronic obstructive pulmonary (COPD) Any disorder that persistently obstructs bronchial airflow. COPD mainly involves two related diseases --…
- Fibula The lateral (outside) and smaller of the two long bones in the lower leg between the knee and ankle. (The…
- Animal-to-human transplant Transplant: See Xenotransplantation
- QRS complex The deflections in the tracing of the electrocardiogram (ECG or EKG), comprising the Q, R, and S waves, that…