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).
Microscopy, electron
Too small a body. A child with microsomia has significant undergrowth. The prefix "micro-" is derived from the Greek "mikros" meaning small. It diminishes whatever it precedes. "Soma" is also from the Greek and means "body."
Read the definitionRandom terms
Show more- Tabes dorsalis Slowly progressive degeneration of the spinal cord that occurs in the tertiary (third) phase of syphilis a…
- Lysine An amino acid, one of the 20 building blocks of protein. A dietary essential amino acid, lysine is present in…
- Holmes, Oliver Wendell, Sr. (1809-1894). Celebrated American physician and professor of medicine (anatomy and physiology) at Harvard, and…
- Ileus Obstruction of the intestine due to it being paralyzed. The paralysis does not need to be complete to cause…
- Direct-entry midwife A midwife who has entered the profession of midwifery as an apprentice to a practicing midwife rather than…
- Medication 1. A drug or medicine. 2. The administration of a drug or medicine. (Note that 'medication' does not have the…
- AP, X-ray An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA…
- Film, tear See: Tear film
- Esophageal speech Speech produced with air trapped in the esophagus and forced out again. People with a laryngectomy (for…
- Effusion, pleural See: Pleural effusion
- Epilepsy, partial A seizure that affects only one part of the brain. Symptoms will depend on which part is affected: one part…
- Babinski response An important neurologic examination based upon what the big toe does when the sole of the foot is stroked. If…