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).
Defensin
A family of potent antibiotics made within the body by neutrophils (a type of white blood cell) and macrophages (cells that can engulf foreign particles). The defensins play important roles against invading microbes. They act against…
Read the definitionRandom terms
Show more- Male external genitalia The external genital structures of the male, comprising the penis, the male urethra, and the scrotum
- Autoimmune disease An illness that occurs when the body tissues are attacked by its own immune system. The immune system is a…
- FGFR3 Abbreviation for fibroblast growth factor receptor 3. Mutations in the FGFR3 gene are known to cause three…
- Arrectores pilorum Tiny muscles that act as the hair erector muscles. The arrectores pilorum play a key role in goose bumps, a…
- Ileoscopy Use of a flexible instrument (a 'scope') to examine the ileum which is the lowest part of the small…
- GIFT A technique in which the male and female cells required to begin reproduction are injected into the fallopian…
- Cervical vertebra, second The second cervical vertebra is called the axis. It is so-named because the uppermost cervical vertebra…
- P arm of a chromosome The short arm of a chromosome. The 'p' comes from the French 'petit' meaning small. All human chromosomes…
- Autoclave A chamber for sterilizing with steam under pressure. The original autoclave was essentially a pressure…
- Breast feeding See: Breastfeeding
- Hypercapnia More than the normal level of carbon dioxide in the blood. Hypercapnia is as opposed to hypocapnia and…
- DPT immunization Immunization to protect against diphtheria, pertussis (whooping cough), and tetanus. DPT immunizations are…