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).
Hemostasis
The stoppage of bleeding or hemorrhage. Also, the stoppage of blood flow through a blood vessel or organ of the body. Hemostasis is the arrest of bleeding, whether it be by normal vasoconstriction (the vessel walls closing temporarily), by…
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Show more- Vasodepressor syncope The temporary loss of consciousness in a particular kind of situation. (Syncope is temporary loss of…
- Antidepressant, SSRI A selective serotonin reuptake inhibitor (SSRI), one of the commonly prescribed drugs for treating…
- Protozoa A single-cell organism that can only divide within a host organism. Malaria is caused by a protozoa…
- Arrhythmias, atrial Abnormal heart rhythm due to electrical disturbances in the atria (the upper chambers of the heart) or the AV…
- Leukoreduction A process used to filter and remove white blood cells from whole blood before transfusion. The reason why…
- Tick typhus, Queensland See: Queensland tick typhus
- Messenger RNA The key intermediary in gene expression, translating the DNA's genetic code into the amino acids that make up…
- Exopeptidase An enzyme that catalyzes the cleavage of the terminal (last) or next-to-last peptide bond from a polypeptide…
- Syndrome, Hermansky-Pudlak (HPS) See: Hermansky-Pudlak syndrome
- Syndrome, Meniere A condition with recurrent vertigo accompanied by ringing in the ears (tinnitus) and deafness. Symptoms…
- Shunt, Blalock-Taussig A pioneering heart operation named after the American surgeon Alfred Blalock (1899-1964) and the pediatric…
- Graft Healthy skin, bone, or other tissue taken from one part of the body to replace diseased or injured tissue…