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.
- 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.
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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).
Immune tolerance
A state of unresponsiveness to a specific antigen or group of antigens to which a person is normally responsive. Immune tolerance is achieved under conditions that suppress the immune reaction and is not just the absence of a immune…
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Show more- Vasectomy Vasectomy: A vasectomy is a surgical procedure designed to make a man sterile by cutting or blocking both the…
- Chondrocalcinosis Calcium in cartilage, usually in a joint, as in osteoarthritis
- Desquamation The shedding of the outer layers of the skin. For example, once the rash of measles fades, there is…
- Appendectomy Appendectomy: Removal by surgery of the appendix, the small worm-like appendage of the colon (the large…
- Ovary The female gonad, the ovary is one of a pair of reproductive glands in women. They are located in the pelvis…
- Bowen disease An early stage of skin cancer. Bowen's disease is medically the same as 'squamous cell carcinoma in situ.'…
- Syndrome, Johnson-Stevens See: Stevens-Johnson syndrome.
- Syndrome, patellofemoral (PFS) The commonest cause of chronic knee pain, PFS characteristically causes vague discomfort of the inner knee…
- Placental growth factor A type of vascular endothelial growth factor. Placental growth factor is expressed not only in placental…
- Pneumonia, Hecht's Pneumonia, Hecht's: Also known as giant cell pneumonia, this is a deadly but fortunately rare complication of…
- Forceps An instrument with two blades and a handle used for handling, grasping, or compressing. Many types of forceps…
- Dioscorides Dioscorides of Anazarbus. First century Greek physician, botanist and pharmacologist whose encyclopedia of…