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).
Rectal (adjective)
Having to do with the rectum, the last 6 to 8 inches of the large intestine that serves to store solid waste until it leaves the body through the anus. The word 'rectal' comes from the Latin 'rectus' meaning 'straight' (which the human…
Read the definitionRandom terms
Show more- Diplopia, binocular Double vision (diplopia) that is only evident when looking through both eyes and disappears if one eye is…
- Rhinitis Irritation of the nose. Derived from the Greek word rhinos meaning of the nose
- Diastolic Referring to the time when the heart is in a period of relaxation and dilatation (expansion). The noun for…
- Malformation, arteriovenous An arteriovenous malformation (AVM) is a congenital disorder (one present at birth) of blood vessels in the…
- GALT deficiency Lack of the enzyme called GALT (galactose-1-phosphate uridyl transferase) which causes the genetic metabolic…
- Discordant couple A pair of long-term sexual partners in which one has a sexually transmitted infection and the other does not…
- Cancer, islet cell See: Islet cell cancer
- Aqueous humor In medicine, humor refers to a fluid (or semifluid) substance. Thus, the aqueous humor is the fluid normally…
- Stent A tube designed to be inserted into a vessel or passageway to keep it open. Stents are inserted into narrowed…
- Keratosis, actinic A small rough spot on skin chronically exposed to the sun, precancerous, can develop into a skin cancer…
- Laryngitis Laryngitis is an inflammation of the larynx, the portion of the airway (respiratory tract) containing the…
- E2F3 E2F transcription factor 3. E2F3 is a gene on chromosome 6p22 that is a member of the E2F family of…