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).
ASCUS
An acronym for Atypical Squamous Cells of Undetermined Significance. This term is used in the Bethesda System for reporting Pap smear findings and indicates that some flat (squamous) cells look unusual and may or may not be pre-malignant…
Read the definitionRandom terms
Show more- Illness, altitude >If possible, don't fly or drive to high altitude. Start below 10,000 feet (3,048 meters) and walk up. >If…
- Prostate, nodular hyperplasia See: Benign prostatic hyperplasia
- Loa loa The eye worm, a parasite that lives in humans and other primates. People contract the parasite when bitten by…
- Infection, urinary tract (UTI) An infection in the urinary system that begins when microorganisms cling to the opening of the urethra (the…
- EMG Electromyogram
- Antonio Maria Valsalva See: Antonio Maria Valsalva
- Childhood liver cancer Primary cancer of the liver (cancer that starts in the liver) in children, a relatively rare malignancy in…
- Treponema pallidum The cause of syphilis, this is a microscopic bacterial organism called a spirochete, a worm-like…
- Double-blind Term used to described a study in which both the investigator or the participant are blind to (unaware of)…
- Autoimmune polyglandular syndrome (APS) A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…
- Splenomegaly Enlargement of the spleen.
- Stratum corneum The stratum corneum as a rule refers to the outermost layer of the epidermis, which is itself the outer layer…