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).
H and H
H and H, sometimes written as 'H&H', is a popular shorthand for hemoglobin and hematocrit, two very common and important blood tests. Hemoglobin is the oxygen-carrying protein pigment in the blood, specifically in the red blood cells…
Read the definitionRandom terms
Show more- Douglas, pouch of >Culdoscopy, the introduction of a viewing tube (endoscope) through the vagina into the cul-de-sac…
- Emergency contraception The prevention of pregnancy after unprotected vaginal intercourse. Emergency contraception may use drugs…
- Tandem MS Abbreviation for tandem mass spectrometry. See: Tandem mass spectrometry
- Myalgia, epidemic Also known as Bornholm disease, this is a temporary illness that is a result of virus infection. The disease…
- Epicanthal fold A fold of skin that comes down across the inner angle (canthus) of the eye. The epicanthal fold is more…
- Coeval Of the same or equal age or duration. For example, the two elderly men were coeval with one another. Coeval…
- Phenocopy 1. An environmental condition that imitates (copies) one produced by a gene. 2.The person who has an…
- Dermoid cyst of the ovary Cyst of the ovary : A bizarre tumor, usually benign, in the ovary that typically contains a diversity of…
- ATL The disease variously called adult T-cell leukemia, adult T-cell leukemia/lymphoma and adult T-cell lymphoma…
- Rheumatoid arthritis Rheumatoid arthritis: An autoimmune disease which causes chronic inflammation of the joints, the tissue…
- Anemia, addisonian Anemia, addisonian: A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not…
- Astrocytoma A tumor that begins in the brain or spinal cord in small, star-shaped cells called astrocytes. The location…