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).
Spinal cord
The major column of nerve tissue that is connected to the brain and lies within the vertebral canal and from which the spinal nerves emerge. Thirty-one pairs of spinal nerves originate in the spinal cord: 8 cervical, 12 thoracic, 5 lumbar…
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Show more- Homocystinuria A genetic disease due to an enzyme deficiency. Among other events, there is a buildup of the amino acid…
- Essential fatty acid An unsaturated fatty acid that is essential to human health, but cannot be manufactured in the body. There…
- Stop codon A set of three adjacent bases in the DNA or their complementary bases in messenger RNA that specifies the end…
- SEER The Surveillance, Epidemiology, and Ends Results (SEER) program that maintains statistics on cancer in the…
- Baker's yeast Saccharomyces cerevisiae
- Ectoparasitosis Infestation with an ectoparasite, a parasite that lives on or in the skin. The four major ectoparasitoses are…
- Amino acid, nonessential An amino acid that can be made by humans and so is not essential to the human diet. There are 11 nonessential…
- Hyperventilation Overbreathing. This can cause dizziness, lightheadedness, weakness, shortness of breath, a sense of…
- Amine A chemical compound containing nitrogen. Amines are derived from ammonia. (The name 'amine' was derived from…
- Absence seizure A seizure that takes the form of a staring spell. The person suddenly seems to be 'absent.' An absence…
- Tired A feeling of a lessened capacity for work and reduced efficiency of accomplishment, usually accompanied by a…
- Spasmodic dysphonia A voice disorder caused by involuntary movements of one or more muscles of the larynx or voice box. People…