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- Obese Well above ones normal weight. A person has traditionally been considered to be obese if they are more than…
- Dystocia, placental See: Placental dystocia
- Map-dot-fingerprint type corneal dystrophy A disorder in which the cornea (the normally clear front window of the eye) shows geographic map-like lines…
- Fluorescent treponemal antibody absorbed test A blood serum screening test for syphilis designed to demonstrate the presence or absence of specific…
- Placental chorioangioma A benign vascular (blood vessel) tumor of the placenta (afterbirth). Large chorioangiomas cause complications…
- Fourth stage of labor The hour or two after delivery when the tone of the uterus is established and the uterus contracts down again…
- Cerclage Encircling with a ring, loop, wire, or ligature. Cerlage can be around bone fragments to hold them together…
- Coxa vara Inward curvature of the hip. Malformation of the hip at birth, such as coxa vara, can increase one's risk for…
- Stress Stress: Forces from the outside world impinging on the individual. Stress is a normal part of life that can…
- DNA, coding A sequence of DNA that codes for protein. Coding DNA sequences are separated by long regions of DNA called…
- Irritant contact dermatitis Dermatitis: A rash brought about by constant irritation from a substance. For example, anyone who washes…
- ZNF9 A gene that encodes a protein called zinc finger protein 9. An inherited mutation in ZNF9 causes type 2…