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).
Involuntary
Done other than in accordance with the conscious will of the individual. The opposite of voluntary. The terms 'voluntary' and 'involuntary' apply to the human nervous system and its control over muscles. The nervous system is divided into…
Read the definitionRandom terms
Show more- Anastomosis The connection of normally separate parts or spaces so they intercommunicate. An anastomosis may be naturally…
- Menstrually associated migraine See: Menstrual migraine
- Stroke, heat Stroke, heat: Heat stroke can be LIFE-THREATENING! Victims of heat stroke almost always die, so immediate…
- Pons A specific section of the brain formed by the rounded prominence on the front surface of the brainstem. (The…
- Asplenia The absence of a spleen or one that functions. (The spleen can be functionally destroyed, as occurs in…
- BPH A balance disorder that results in the sudden onset of dizziness, spinning, or vertigo when moving the head.
- Piriformis muscle A muscle that begins at the front surface of the sacrum (the V-shaped bone between the buttocks at the base…
- Autoimmune thyroid disease Disease of the thyroid gland due to autoimmunity in which the patient's immune system attacks and damages…
- Phytanic acid storage disease See Refsum disease
- Genome, yeast See: Yeast genome
- Antigen, prostate specific See: PSA
- Ultrasound, Doppler See: Doppler ultrasound