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).
RRNA
Ribosomal RNA, a molecular component of a ribosome, the cell's essential protein factory. Strictly speaking, ribosomal RNA (rRNA) does not make proteins. It makes polypeptides (assemblies of amino acids) that go to make up proteins. A tiny…
Read the definitionRandom terms
Show more- Prognathism An overly prominent jaw.
- African sleeping sickness Also called African trypanosomiasis, a systemic disease caused by the parasite Trypanosoma brucei that is…
- Cytosine (C) One member of the G-C (guanine-cytosine) pair of bases in DNA
- Facial canal introitus In anatomy, an introitus is an entrance, one that goes into a canal or hollow organ. The introitus of the…
- Virus, respiratory syncytial A virus that can grow in the cells of a species foreign to the normal host species, a species different from…
- Otoacoustic emission test A physician specialized in diagnosing and treating diseases of the head and neck, especially those involving…
- Oxymetholone A male hormone that stimulates production of the male hormone testosterone. It is sometimes given to treat…
- Prostaglandin One of a number of hormone-like substances that participate in a wide range of body functions such as the…
- Unit, international (IU) An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used…
- Category 4 storm See: Category four hurricane
- Epilepsy, petit mal See: Petit mal
- Acrodermatitis enteropathica An historic model for the therapy of genetic disease. In an era (the 1950s) when inherited disorders were…