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.
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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).
Congenital bilateral absence of vas deferens
A condition in males when the tubes that carry sperm from the testes (the vas deferens) fail to develop normally. The testes usually develop and function normally and the men have normal sexual performance, but sperm cannot be transported…
Read the definitionRandom terms
Show more- Sign, Lhermitte Sudden transient electric-like shocks extending down the spine triggered by flexing the head forward. Due to…
- Seckel syndrome The second cranial nerve is the optic nerve, the nerve that connects the eye to the brain and carries the…
- Migraine aura Sensory phenomena that may occur before a migraine. Visual auras may include flashing lights, geometric…
- Juvenile Between infantile and adult as, for example, in juvenile rheumatoid arthritis (onset before age 16 years) and…
- IgA Immunoglobulin A, a major class of immunoglobulins found in serum and external body secretions such as…
- Metallomembrane endopeptidase (MME) A molecule that is also known as CALLA (common acute lymphocytic leukemia antigen), a cell surface…
- Midwife A person trained to assist a woman during childbirth. Many midwives also provide prenatal care for pregnant…
- Peripheral insulin resistance Failure of target tissues to increase glucose disposal in response to insulin. See also: Insulin resistance
- Pulmonary embolism Pulmonary embolism: The obstruction of the pulmonary artery or a branch of it leading to the lungs by a blood…
- Bergstrom, Sune K (1916-2004) Swedish physician and scientist who was awarded the Nobel prize for physiology or medicine in…
- Mycelia An array of fungal filaments which was thought to resemble a display of decorative nails. From the Greek…
- Bross, Irwin DJ (1921-2004) American public-health advocate and biostatistician who initiated and designed methods for…