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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Homosexuality 1
Trisomy of the same chromosome. The occurrence of two children in the same family with trisomy 21 is an instance of homotrisomy. See also: Heterotrisomy.
Read the definitionRandom terms
Show more- Ehlers-Danlos syndrome type VIIC See: Ehlers-Danlos syndrome, dermatosparaxis type
- Muscle, abductor Any muscle used to pull a body part away from the midline of the body. For example, the abductor muscles of…
- Fibrodysplasia ossificans progressiva (FOP) A rare but dramatic genetic disorder that turns muscles, tendons and ligaments into bone, threatening to…
- Naltrexone treatment program Treatment of opiate addicts with naltrexone, a long-acting synthetic opiate antagonist with few side effects…
- Plasmodium The parasite guilty in the case of malaria (paludism). Plasmodium is a type of protozoa, a single-celled…
- Contraction, premature See: Extrasystole
- Castration Removal of the sex glands, usually used to indicate removal of the male testicles
- HDR syndrome The syndrome of familial Hypoparathyroidism, sensorineural Deafness, and Renal dysplasia. Inherited as an…
- Center for Devices & Radiological Health Abbreviated CDRH. Part of the FDA (the US Food & Drug Administration)
- Lymphoma, AIDS-related Lymphoid tumors that appear in people with AIDS, presumably due to immune- system impairment. Treatment is…
- Section, longitudinal A cut along the long axis of a structure
- Placenta, low Location of the placenta in the lower part of the uterus (womb) so that the placenta partially or completely…