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).
Thrombocyte
A platelet. Crucial to normal blood clotting. Although platelets are sometimes classed as blood cells, they are not. They are fragments of a large cell called a megakaryocyte (literally, a large cell).
Read the definitionRandom terms
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- Cephalothoracic lipodystrophy A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper…
- Vinca alkaloid A medication in a class of anticancer drugs that inhibit cancer cell growth by stopping cell division…
- Withdrawal, penis A method of contraception, also called coitus interruptus, in which the man withdraws his penis from the…
- Fifth cranial nerve The fifth cranial nerve is the trigeminal nerve. The trigeminal nerve is quite complex. It functions both as…
- CTL Cytotoxic T-lymphocyte
- Fibrofolliculomas, trichodiscomas and acrochordons See: Birt-Hogg-Dube syndrome
- Pitting edema Observable swelling of body tissues due to fluid accumulation that may be demonstrated by applying pressure…
- Adrenoleukodystrophy A rare genetic (inherited) disorder characterized by the breakdown or loss of the myelin sheath surrounding…
- Sternal rib One of the first 7 pairs of ribs. A rib is said to be a 'sternal' rib or a 'true' rib if it attaches to the…
- Bone cancer Bone cancer: A malignancy in bone. Primary bone cancer, one that begins in bone, is uncommon but it is not…
- Freckle A flat circular spot on the skin about the size of the head of a nail that develops after repeated exposure…