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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Serum
The clear liquid that can be separated from clotted blood. Serum differs from plasma, the liquid portion of normal unclotted blood containing the red and white cells and platelets. It is the clot that makes the difference between serum and…
Read the definitionRandom terms
Show more- Jugular vein, external The more superficial of the two jugular veins in the neck that drain blood from the head, brain, face and…
- Chyle A fluid consisting of a mixture of lymphatic fluid (lymph) and chylomicrons that has a milky appearance…
- Five-day fever Fever: Also called trench fever, this is a disease borne by body lice that was first recognized in the…
- Bee genome See: Honey bee genome
- T cell A type of white blood cell that is of key importance to the immune system and is at the core of adaptive…
- Posture, neutral See: Neutral posture
- Laryngeal nerve palsy Paralysis of the larynx (voice box) caused by damage to the recurrent laryngeal nerve or its parent nerve…
- Glenn shunt A surgical operation for children born with cyanotic heart disease ('blue babies'), in which a large vein…
- Sequester 1. In medicine, to set apart, detach or separate a small portion of tissue from the rest. 2. In bone, for a…
- Creatinine A chemical waste molecule that is generated from muscle metabolism. Creatinine is produced from creatine, a…
- Labile Labile: Unstable, unsteady, not fixed. In psychology or psychiatry, labile denotes free and uncontrolled…
- CpG island In molecular genetics, a short region of DNA rich in CpG sites, often located near the promoters of genes…