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).
Red blood cells
The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their…
Read the definitionRandom terms
Show more- Hemarthrosis Blood in a joint.
- Glaucoma treatment (surgery) Surgery can also help fluid escape from the eye and thereby reduce the pressure. However, surgery is now…
- Agent, antibiotic A drug used to treat bacterial infections. The original definition of an antibiotic was a substance produced…
- Prostatodynia A type of inflammation of the prostate not due to bacterial infection and in which there are no objective…
- Stress Stress: Forces from the outside world impinging on the individual. Stress is a normal part of life that can…
- Somnolence Sleepiness, the state of feeling drowsy, ready to fall asleep. A person experiencing somnolence is somnolent…
- Microscope, fluorescent See: Fluorescent microscope
- Major A major may be an officer in the military but, in a larger sense, it can be anything that is more than…
- CFS Chronic fatigue syndrome
- Blastocystis infection See: Blastocystosis
- Spermatogenesis The process of sperm formation. The term was created from the prefix 'spermato-' (Greek sperma, the seed or…
- Iodine deficiency Iodine is a natural requirement of our diets. Iodine deficiency can lead to inadequate production of thyroid…