MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Visceral pericardium
The inner layer of the pericardium, a conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium has outer and inner coats. The outer coat is tough and thickened, loosely cloaks the…
Read the definitionRandom terms
Show more- Radiofrequency ablation Radiofrequency ablation: The use of electrodes to generate heat and destroy abnormal tissue. In…
- Nurse-midwifery The practice engaged in by a nurse-midwife
- Hypo- Prefix meaning 'low, under, beneath, down, below normal' as in hypocalcemia (low calcium in the blood)…
- Familial mental retardation 1 See FMR1.
- Sign, Gottron A scaly, patchy redness over the knuckles seen in patients with dermatomyositis, an inflammatory muscle…
- Bell, Charles (1774-1842) Renowned surgeon, anatomist and artist, who discovered Bell's palsy, paralysis of the facial…
- Cauliflower-ear deformity Cauliflower-ear deformity: Destruction of the underlying cartilage framework of the outer ear (pinnae)…
- Intraoperative During surgery. Literally, within surgery. Intraoperative hemorrhage is bleeding during surgery
- Topoisomerase A class of enzymes that alter the supercoiling of double-stranded DNA. (In supercoiling the DNA molecule…
- Cecum The cecum (also spelled caecum), the first portion of the large bowel, situated in the lower right quadrant…
- HSAN III Hereditary sensory and autonomic neuropathy III. See: Familial dysautonomia.
- Acoustic nerve A cranial nerve concerned with hearing, balance and head position. The acoustic nerve is the 8th cranial…