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).
Lymphatic system
The tissues and organs, including the bone marrow, spleen, thymus, and lymph nodes, that produce and store cells that fight infection and disease. The channels that carry lymph are also part of this system.
Read the definitionRandom terms
Show more- Recurrent abortion The occurrence of 3 or more miscarriages (which are medically termed 'spontaneous abortions') with no…
- STDs in men See sexually transmitted diseases in men.
- American Cancer Society (ACS) A 'nationwide community-based voluntary health organization dedicated to eliminating cancer as a major health…
- PCO disease >Irregular or no periods >Acne >Obesity, and >Excess hair growth. All women with PCO have irregular or no…
- Foramen of Magendie An opening from the fourth ventricle, which is one in a system of four communicating cavities called…
- Autosomal dominant A pattern of inheritance in which an affected individual has one copy of a mutant gene and one normal gene on…
- NF1 (neurofibromatosis type 1) See: Neurofibromatosis type 1
- Imperforate anus A congenital malformation (a birth defect) in which the rectum is a blind alley (a cul-de-sac) and there is…
- Intercurrent disease A disease that intervenes during the course of another disease. A patient with AIDS may develop an…
- Tricho- (prefix) Pertaining to hair. As in trichobezoar (a hair ball), trichotillomania (compulsive hair pulling)…
- Vulnerary (Plural = vulneraries). A remedy used in healing or treating wounds. Any preparation, plant or drug used in…
- Conjugated linoleic acid (CLA) A supplement that has been promoted as an aid to weight loss and muscle building and as a deterrent to…