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).
Tracheostomy
Tracheostomy: A surgical operation to create an opening (stoma) into the windpipe (the trachea). The opening itself can also be called a tracheostomy. A tracheostomy may be needed on an emergency basis to permit a person to breathe who has…
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Show more- Crossed embolism Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolize) , they travel…
- Caseous Cheeselike. In caseous lymphadenitis, the lymph nodes turn into a soft, dry, crumbly mass resembling cheese…
- Sumatriptan Sumatriptan: A triptan drug for the treatment of migraine. Marketed under the brand name Imitrex.
- Hepatotoxic Injurious to the liver. For example, acetaminophen (Tylenol) can be hepatotoxic.
- Feeding, breast See: Breastfeeding
- Branchial cleft cyst Also called a branchial cyst, this is a cavity that is a remnant from embryologic development present at…
- Vitamin B3 Vitamin B3 is niacin. Deficiency of niacin causes pellagra. Pellagra was known as the 'disease of the four…
- Indwelling bladder catheter See: Catheter, indwelling bladder
- Kubler-Ross, Elisabeth (1926-2004) Swiss-born American psychiatrist whose work with and teching about terminally ill patients helped…
- Musical hallucination A form of auditory hallucination in which music is heard, often the same piece of music. In most cases the…
- Microbicide An agent that kills microbes, minute forms of life (e.g. bacteria, fungi, and protozoal parasites), some…
- Sleep apnea Sleep apnea: The temporary stoppage of breathing during sleep, often resulting in daytime sleepiness. Apnea…