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).
Immunity
The condition of being immune. Immunity can be innate (for example, humans are innately immune to canine distemper) or conferred by a previous infection or immunization
Read the definitionRandom terms
Show more- Syndrome, Proteus A disturbance of cell growth including benign tumors under the skin, overgrowth of the body, often more on…
- Afferent nerve A nerve that carries impulses toward the central nervous system (CNS). The opposite of an afferent nerve is…
- Brain cancer Brain cancer: Cancer of the central information processing center of the body. Tumors in the brain can be…
- HS Hereditary spherocytosis. HS also stands for half-strength, hamstrings, heart sounds, heparan sulfate, hernia…
- Large saphenous vein The larger of the two saphenous veins, the principal veins that run up the leg superficially (near the…
- Second stage of labor The part of labor from the full dilatation of the cervix until the baby is completely out of the birth canal…
- Zygote The cell formed by the union of a male sex cell (a sperm) and a female sex cell (an ovum). The zygote…
- Schizencephaly A developmental disorder of the brain characterized by abnormal slits, or clefts, in the cerebral…
- CAT scan, helical CAT scan, helical: A conventional computerized axial tomography scan (CAT scan or CT scan) is an x-ray…
- Hormone, T3 Triiodothyronine, a thyroid hormone. The number 3 is usually in subscript
- Osteogenesis imperfecta with blue sclerae See: Osteogenesis imperfecta type I.
- Coughing syncope The temporary loss of consciousness upon coughing. Syncope is the temporary loss of consciousness or, in…