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).
Cohort
In a clinical study, a well-defined group of subjects or patients who have had a common experience or exposure and are then followed up for the incidence of new diseases or events, as in a cohort study. In Rome, a 'cohors' was one of ten…
Read the definitionRandom terms
Show more- Plano- Flat. A lens that is planoconvex is flat on one side and convex on the other
- MRI, endorectal An MRI (magnetic resonance imaging) done from inside the rectum. To do such as MRI, a surface coil within an…
- Migraine Migraine: Usually, periodic attacks of headaches on one or both sides of the head. These may be accompanied…
- Sesamoiditis Inflammation of a sesamoid bone. Since the patella (kneecap) is a sesamoid bone, inflammation of the patella…
- Bloody show 1. The blood-tinged mucus created by extrusion and passage of the mucous plug that filled the cervical canal…
- Sneeze 1. As a verb, to suddenly expel air through the nose and mouth by an involuntary contraction of the muscles…
- Ear puncture Puncture of the ear drum may be due to an accident for example when something is stuck into the ear. Or it…
- Nerve, ninth cranial The ninth cranial nerve is the glossopharyngeal nerve. All 12 cranial nerves, the glossopharyngeal nerve…
- Activity, drug A measure of the physiological response a drug produces in the body. A less active drug produces less…
- Balance A biological system that enables us to know where our bodies are in the environment and to maintain a desired…
- Examination, digital rectal (DRE) An exam done to detect abnormalities that can be felt (palpated) from within the rectum. The doctor inserts a…
- Laxative Something that loosens the bowels. Used to combat constipation (and sometimes overused, producing diarrhea)…