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).
Hallucination
A profound distortion in a person's perception of reality, typically accompanied by a powerful sense of reality. An hallucination may be a sensory experience in which a person can see, hear, smell, taste, or feel something that is not…
Read the definitionRandom terms
Show more- Hemodialysis Hemodialysis: A medical procedure that uses a special machine (a dialysis machine) to filter waste products…
- Endemic Present in a community at all times but in relatively low frequency. Something that is endemic is typically…
- Laryngectomee A person who has had his or her larynx (voice box) removed. A partial laryngectomy preserves the voice. The…
- Al-hijamah Arabic term for the practice of cupping. See: Cupping
- Colon cancer Colon cancer: A malignancy that arises from the inner lining of the colon. Most, if not all, of these cancers…
- MRNA Messenger RNA, the key intermediary in gene expression, translating the DNA's genetic code into the amino…
- Ergotism Ergotism could be called a 'cereal killer' for its cause, ergot, comes from cereals such as rye and wheat and…
- Sinus arrhythmia The normal increase in heart rate that occurs during inspiration (when you breathe in). This is a natural…
- Thiamine deficiency, infantile See: Infantile beriberi
- Drug, ACE-inhibitor A drug that inhibits ACE (angiotensin converting enzyme) which is important to the formation of angiotensin…
- Therapy, gene Insertion of normal DNA directly into cells to correct a genetic defect. The treatment of disease by…
- McClintock See: McClintock, Barbara