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.
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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).
Pericardium, parietal
The outer layer of the pericardium which is 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…
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Show more- Martin Rodbell See: Rodbell, Martin
- Spiral CAT scan A conventional computerized axial tomography scan (CAT scan or CT scan) is an x-ray procedure which combines…
- Chromosome inversion A basic type of chromosome rearrangement. A segment that does not include the centromere (and so is…
- Bernard syndrome A complex of abnormal findings, namely sinking in of one eyeball, ipsilateral ptosis (drooping of the upper…
- Pituitary gigantism Excessive growth and too much height due to chronic overactivity of the pituitary gland which is located at…
- Syndrome, von Hippel-Lindau See Von Hippel-Lindau syndrome
- Artery, ophthalmic The ophthalmic artery supplies blood to the eye and adjacent structures of face. It arises from the internal…
- R/O Medical abbreviation for rule out
- Prostate enlargement Most prostatic enlargement is due to benign prostatic hyperplasia (BPH), a problem that bothers men…
- Urge incontinence A sudden involuntary contraction of the muscular wall of the bladder causing urinary urgency, an immediate…
- Otitis Inflammation of the ear. Depending upon which part of the ear is inflammed, there is otitis externa, otitis…
- Cervical vertebrae The cervical (neck) vertebrae are the upper 7 vertebrae in the spinal column (the vertebral column). They are…