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).
Prophylactic
A preventive measure. The word comes from the Greek for 'an advance guard,' an apt term for a measure taken to fend off a disease or another unwanted consequence. A prophylactic is a medication or a treatment designed and used to prevent a…
Read the definitionRandom terms
Show more- Genome, dog See: Dog genome
- Symmetric lipomatosis, multiple A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper…
- Labile Labile: Unstable, unsteady, not fixed. In psychology or psychiatry, labile denotes free and uncontrolled…
- Lordosis Inward curvature of the spine. Normally, for example, the low back demonstrates lordosis. The spine is not…
- Syndrome, Martorell See: Takayasu disease
- Anisocoria Both pupils are usually of equal size. If they are not, that is termed anisocoria (from 'a-', not + 'iso'…
- Pentapeptide A peptide consisting of five amino acids
- Human lymphotropic virus III Another name for the human immunodeficiency virus (HIV), the cause of AIDS.
- Jet lag Jet lag: A temporary disorder that causes fatigue, insomnia, and other symptoms as a result of rapid air…
- Human chorionic gonadotropin (hCG) A human hormone made by chorionic cells in the fetal part of the placenta. Human chorionic gonadotropin…
- Iodine deficiency Iodine is a natural requirement of our diets. Iodine deficiency can lead to inadequate production of thyroid…
- Immune response Any reaction by the immune system.