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).
Platelet
An irregular, disc-shaped element in the blood that assists in blood clotting. During normal blood clotting, the platelets clump together (aggregate). Although platelets are often classed as blood cells, they are actually fragments of…
Read the definitionRandom terms
Show more- Drug, antifungal A drug used to treat fungal infections. Examples of antifungal drugs include miconazole (MONISTAT) and…
- SEER program The Surveillance, Epidemiology, and End Results (SEER) program of the National Cancer Institute (NCI), an…
- Cancer, ovarian Cancer of the ovary, the egg sac of females. The anatomic location of the ovaries: NTER>Most ovarian growths…
- Bronchiole A tiny tube in the air conduit system within the lungs that is a continuation of the bronchi and connects to…
- Karyocyte Any cell that possesses a nucleus. A neuron (nerve cell) is a karyocyte; it has a nucleus. A mature…
- Chronic insomnia See Insomnia, chronic
- FEV1 Forced Expiratory Volume in the first second. The volume of air that can be forced out in one second after…
- Disease, Tsutsugamushi Scrub typhus, a mite-borne infectious disease caused by a microorganism, Rickettsia tsutsugamushi…
- Atresia, aortic Congenital absence of the normal valvular opening from the left ventricle of the heart into the aorta…
- Ethmoid sinus A collection of air cells within the ethmoid bone, a spongy bone which makes up the front of the floor of the…
- Nonstructural scoliosis A structurally normal spine that appears to have a lateral curve (scoliosis). Nonstructural scoliosis…
- Resorb Literally, to absorb again. To lose substance. Some of a tooth may be resorbed