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).
Dyad
The word 'dyad' comes from the Greek 'dyas' meaning the number two. In psychology, a dyad refers to a pair of persons in an interactional situation. For example, a patient and therapist, a woman and her husband, a girl and her stepfather…
Read the definitionRandom terms
Show more- Hepatico- A combining form used before a consonant to indicate a relationship to a hepatic duct or the liver. From the…
- Virus, JC JC virus
- Reflex, pressor A pressor reflex is a neurological (nerve) reflex that constricts arterioles (small blood vessels) and…
- Barrett esophagus See: Barrett's esophagus
- Leukoplakia Leukoplakia: A white spot or patch on the mucous membranes in the mouth (for instance, inside the cheeks, on…
- Sac, pericardial See: Pericardial sac
- Migraine, ocular Migraine involving the eyes, with or without headache. Ocular migraines usually affect only one eye at a…
- Familial cylindromatosis A genetic syndrome in which numerous benign tumors of skin adnexa (such as the sweat glands) develop…
- ERT (estrogen replacement therapy) Estrogen replacement therapy (ERT) is used to treat menopause. It reduces or stops the short-term changes of…
- Neurotheology The search for the place(s) in the brain where religious beliefs originate. Neurotheology mixes terms and…
- Low vision device A devise to help to improve visual ability of a person with low vision. Low vision devices may be optical or…
- Immunosuppression Suppression of the immune system. Immunosuppression may result from certain diseases such as AIDS or lymphoma…