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).
Disease, graft-versus-host
A reaction of donated bone marrow against a patient's own tissue. Also called GVHD
Read the definitionRandom terms
Show more- Speech therapy The treatment of speech and communication disorders. The approach used depends on the disorder. It may…
- Acanthosis nigricans A skin condition characterized by dark thickened velvety patches, especially in the folds of skin in the…
- Bottlefeeding The use of a substitute for breast milk for feeding infants. Pediatricians generally advise exclusively…
- Hemophilia heterozygote See: Hemophilia carrier
- Pulmonary hypertension Pulmonary hypertension: High blood pressure in the pulmonary artery that conveys blood from the right…
- Dementia, MELAS Dementia, MELAS: MELAS is the acronym for Mitochondrial Encephalopathy, Lactic Acidosis, and Strokelike…
- Acne vulgaris The common form of acne seen most often in teenagers or young adults, acne vulgaris is the result of…
- Meconium Dark sticky material normally present in the intestine at birth and passed in the feces after birth. The…
- Yawning Involuntary opening of the mouth with respiration, breathing first inward, then outward. Yawning is often…
- Takayasu arteritis Inflammation of aorta and its branches. See: Takayasu disease
- Pinosome A tiny fluid-filled vesicle (bubble) within a cell. Pinosomes are created in the process of pinocytosis in…
- Messenger RNA The key intermediary in gene expression, translating the DNA's genetic code into the amino acids that make up…