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).
Lymphoid tissue
A part of the body's immune system that helps protect it from bacteria and other foreign entities. Lymphoid tissue is rich in lymphocytes (and accessory cells such as macrophages and reticular cells). The lymphoid tissue includes the lymph…
Read the definitionRandom terms
Show more- Congenital stationary night blindness An inherited eye disorder that is not progressive ('stationary') and principally affects the rod…
- Incontinence, fecal Inability to hold feces in the rectum. This is due to failure of voluntary control over the anal sphincters…
- Acetone In the body, a chemical that is formed when the body uses fat instead of glucose (sugar) for energy. The…
- Cashew allergy Allergy: An allergic reaction to cashew nuts. Cashew allergy can be isolated, meaning that the individual is…
- Supraventricular tachycardia Abbreviated SVT. A regular, abnormally fast heart beat (tachycardia) caused by rapid firing of electrical…
- Dual X-ray absorptometry See: DXA
- Weighing, hydrostatic See: Underwater weighing
- Cardio-cutaneous syndrome See: LEOPARD syndrome
- Large cell carcinoma A group of lung cancers in which the cells are large and look abnormal
- Erotomania The false but persistent belief that one is loved by a person (often a famous or prominent person), or the…
- Sexploitation The exploitation of sex, often for commercial purposes. The term is a mid-20th century merger of sex and…
- Gingivitis, acute necrotizing ulcerative (ANUG) This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…