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).
Carcinoid syndrome
A tumor which secretes large amounts of the hormone serotonin. Carcinoid tumor is also called an argentaffinoma. The tumor usually arises in the gastrointestinal tract, anywhere between the stomach and the rectum (the favorite spot is in…
Read the definitionRandom terms
Show more- Donor insemination A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the…
- Tendon, Achilles See: Achilles tendon
- Synaptonemal complex A protein structure that forms between two homologous chromosomes during meiosis and that is thought to…
- Disease, His Named for the Swiss physician Wilhelm His, Jr. (who also described the bundle of His in the heart), this is a…
- Saline Relating to salt. As an adjective, 'saline' means 'salty, containing salt.' As a noun 'saline' is a salt…
- Cancer, prostate Cancer of the gland that produces some of the components of semen fluid. Prostate cancer is the second…
- Cochlear implant A small complex electronic device that is surgically placed (implanted) within the inner ear to help persons…
- Side effects Problems that occur when treatment goes beyond the desired effect. Or problems that occur in addition to the…
- Bubo An enlarged lymph node ('swollen gland') that is tender and painful, particularly in the groin and armpit…
- Claudication, intermittent Claudication, intermittent: An aching, crampy, tired, and sometimes burning pain in the legs that comes and…
- Acoustic Having to do with sound or hearing. The acoustic nerve (the 8th cranial nerve) is concerned with hearing and…
- Copy number polymorphism Abbreviated CNP. A normal variation in DNA due to variation in the number of copies of a sequence within the…