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).
Nonpenetrant trait
A genetic trait (characteristic) that is present in the genome but does not manifest itself in the individual. By contrast, a penetrant trait is one that manifests itself. If, for example, if 100 people have a particular genetic trait but…
Read the definitionRandom terms
Show more- Pulmonary Having to do with the lungs. (The word comes from the Latin pulmo for lung).
- Acute respiratory disease A sudden condition in which breathing is difficult and the oxygen levels in the blood abruptly drop lower…
- Cholangitis, sclerosing See: Primary sclerosing cholangitis
- Syphilis test (FTA-ABS) The fluorescent treponemal antibody absorbed (FTA-ABS) test for syphilis is a blood serum screening test…
- Personality disorder, borderline A serious mental illness characterized by pervasive instability in moods, interpersonal relationships…
- Gene pool The sum total of genes, with all their variations, possessed by a particular species at a particular time
- Colinearity 1. In general, the arrangement of one sequence in the same linear order as another sequence.2. In…
- Dystocia, placental See: Placental dystocia
- Saccular From the Latin 'sacculus' meaning a small pouch. As for example the alveolar saccules (little air pouches)…
- Thyroid cartilage The largest of the cartilages of the larynx (the voice box). The thyroid cartilage is formed of two…
- Histoplasmosis A disease caused by the fungus Histoplasma capsulatum. Most people with histoplasmosis have no symptoms…
- Colic Colic: An attack of crying and apparent abdominal pain in early infancy. This is a common condition…