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).
System, sympathetic nervous
A part of nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. The sympathetic nervous system together with the parasympathetic nervous system (that slows the heart rate, increases intestinal…
Read the definitionRandom terms
Show more- Asn Asparagine. See also: Amino acid symbols
- High protein diet A high protein diet is a type of weight loss plan that emphasizes consumption of high-protein-containing…
- Wilson disease Women. A late 20th century creation. A feminist spelling to avoid the suffix men.
- CBC A commonly used abbreviation in medicine that stands for complete blood count, a set values of the cellular…
- Blender experiment See: Hershey-Chase experiment
- Suicidal Pertaining to suicide. the taking of ones own life. As in a suicidal gesture, suicidal thought, or suicidal…
- Granulocyte >Neutrophils have 'neutral' subtle granules; >Eosinophils have prominent granules that stain readily with the…
- Cranial nerve, seventh The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in…
- Aphasia, primary progressive See: Primary progressive aphasia
- Melanoma, malignant See: Melanoma
- Quickening The moment during pregnancy when the baby is first felt to move
- Memory 1. The ability to recover information about past events or knowledge. 2. The process of recovering…