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).
Dizygotic twin
A twins who have shared a common uterine environment with its twin but is due to a different fertilized ovum. Dizygotic twins are also called fraternal twins.
Read the definitionRandom terms
Show more- Hippophobia An abnormal and persistent fear of horses. Sufferers of this fear experience undue anxiety even when a horse…
- Gigantism, pituitary Excessive growth and height due to chronic overactivity of the pituitary gland (at the base of the brain)…
- Topoisomerase A class of enzymes that alter the supercoiling of double-stranded DNA. (In supercoiling the DNA molecule…
- Histiocytosis, lipid A form of histiocytosis that affects lipid (fat) storage. Also known as Niemann- Pick disease…
- Microscopy, cryo-electron See: Cryo-electron microscopy
- Syndrome, Osler-Rendu-Weber See: Hereditary hemorrhagic telangiectasia
- Anterior The front, as opposed to the posterior. The anterior surface of the heart is toward the breast bone (the…
- Disease, black lung See: Black lung disease
- Active euthanasia The active acceleration of a 'good' death by use of drugs etc, whether by oneself or with the aid of a…
- Insemination The deposition of semen in the female reproductive tract. Under normal circumstances, the deposit is made…
- Nutritionist 1) In a hospital or nursing home, a person who plans and/or formulates special meals for patients. It can…
- Fractured hip Broken bone in the hip, a key health problem among the elderly, usually due to a fall or other kind of trauma…