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).
Contraceptive, pill
Commonly called 'the pill,' combined oral contraceptives are the most commonly used form of reversible birth control in the United States. This form of birth control suppresses ovulation (the monthly release of an egg from the ovaries) by…
Read the definitionRandom terms
Show more- Hypocalcemia Lower-than-normal blood calcium. Low blood calcium makes the nervous system highly irritable with tetany…
- Thyroid hormone receptor A molecule that receives a thyroid hormone and permits it to dock on the nuclear membrane of a cell. The…
- Iodine excess Just as too little iodine can cause thyroid disease, so may prolonged intake of too much iodine also lead to…
- Behavior therapy A treatment program that involves substituting desirable behavior responses for undesirable ones
- Mitotic nondisjunction The failure in mitosis for the two members of a chromosome pair to separate (to disjoin) normally so that…
- Primordium In embryology, organ or tissue in its earliest recognizable stage of development. As, for example, the…
- Foot-and-mouth disease A disease caused by a highly infectious virus that can infect people but affects them most by infecting…
- Isotonic solution A solution that has the same salt concentration as the normal cells of the body and the blood. As opposed to…
- Chromatography, gas (GC) A type of automated chromatography (a technique used to separate mixtures of substances) in which the mixture…
- PVS Pigmented villonodular synovitis
- Levite A member of an ancient caste of hereditary Jewish priests. Membership in the Levites is determined by…
- Autoimmune hemolytic anemia A condition in which the immune system attacks the red blood cells, resulting in fewer of these…