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).
CAT scan, spiral
A conventional computerized axial tomography scan (CAT scan or CT scan) is an x-ray procedure which combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the…
Read the definitionRandom terms
Show more- Pinosome A tiny fluid-filled vesicle (bubble) within a cell. Pinosomes are created in the process of pinocytosis in…
- Bacillophobia An abnormal and persistent fear of bacilli (bacteria). A phobia is an unreasonable sort of fear that can…
- Oral contraceptive A birth control pill taken by mouth. Most oral contraceptives include both estrogen and progesterone. When…
- Bipolar I disorder Bipolar disorder in someone who has experienced depression and at least one episode of severe mania. Severe…
- Myelination The formation of the myelin sheath around a nerve fiber. Also known as myelinization
- Sebaceous cyst A sebaceous cyst is a rounded swollen area of the skin formed by an abnormal sac of retained excretion…
- Streptococcus faecalis Now called Enterococcus faecalis. See Enterococcus
- Menstrual irregularity The normal menstrual cycle is about four weeks long, and often follows the phases of the moon. Its length…
- Vitamin B6 A group of closely related chemical compounds with related names -- pyridoxine, pyridoxal and pyridoxamine --…
- Autotransplantation The process of transplanting tissue from one part of the body to another in the same individual. The…
- Scrofula An old term for tuberculosis of the lymph nodes in the neck. Also known as the King's evil
- IDET Intradiskal electrothermal therapy, a procedure designed to relieve back pain due to damage to the disks…