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).
Adverse effect
A harmful or abnormal result. An adverse effect may be caused by administration of a medication or by exposure to a chemical and be indicated by an untoward result such as by illness or death
Read the definitionRandom terms
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- Dipeptide A peptide consisting of two amino acids
- Intravitreous In the vitreous, the fluid behind the lens in the eye. As in an intravitreous injection.
- Hemodialysis catheter See: Catheter, hemodialysis
- Craniopagus parasiticus Conjoined twins joined at the head (craniopagus) in which a rudimentary head (with little or no body) is…
- Finger stick A procedure in which a finger is pricked with a lancet to obtain a small quantity of capillary blood for…
- Campylobacter jejuni A bacterium that typically infects the bowels. Now the leading cause of bacterial food poisoning…
- Labrum In medicine, a ring of fibrocartilage (fibrous cartilage) around the edge of the articular (joint) surface of…
- Exercise test A test (sometimes called the treadmill test or exercise treadmill test) in which a continuous…
- Bariatric Pertaining to bariatrics, the field of medicine concerned with weight loss
- Bovine genome The genome of the cow (Bos taurus). The bovine genome is similar in size to the genomes of humans and other…
- Small cell lung cancer A type of lung cancer in which the cells appear small and round under the microscope. Also called oat cell…