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).
Trait
In genetics, a trait refers to any genetically determined characteristic. In technical terms, a genetic trait is amenable to segregation analysis rather than quantitative analysis. A dominant lethal trait is a trait that is expressed if…
Read the definitionRandom terms
Show more- Demyelination A degenerative process that erodes away the myelin sheath that normally protects nerve fibers. Demyelination…
- Brittle bone disease Osteogenesis imperfecta, not one but a group of genetic diseases, all of which affect collagen, a key…
- Myelogram An x-ray of the spinal cord and the bones of the spine. During a myelogram, a contrast material that is…
- Laminopathy A disease due to mutation of the lamin A/C gene. The laminopathies include: Emery-Dreifuss muscular dystrophy…
- Multidetector-row CT See: Multidetector computed tomography
- ACL Anterior cruciate ligament
- Cancer causes A greater-than-expected number of cancer cases that occurs within a group of people in a geographic area over…
- Metrorrhagia Uterine bleeding at irregular intervals, particularly between the expected menstrual periods. Metrorrhagia…
- Ehlers-Danlos syndrome See: Ehlers-Danlos syndrome, dermatosparaxis type.
- Papilla, cancer of Cancer of: Cancer of a structure called the papilla or ampulla of Vater, a small muscle located at the…
- Atherosclerotic aneurysm The most common type of aneurysm, affecting the abdominal portion of the aorta and other large arteries…
- Hypothyroidism Deficiency ofroid hormone which is normally made by the thyroid gland which is located in the front of the…