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.
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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).
Nerve, fifth cranial
The fifth cranial nerve is the trigeminal nerve. The trigeminal nerve is quite complex. It functions both as the chief nerve of sensation for the face and the motor nerve controlling the muscles of mastication (chewing). Problems with the…
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Show more- Arachnodactyly Long spider-like fingers and toes, a frequent finding in Marfan syndrome, a heritable disorder of connective…
- Autosome A chromosome that is not a sex chromosome. In other words, any one of the chromosomes save the sex…
- Osteotomy, cuneiform Surgical removal of a triangular piece of bone
- Ectoderm One of the three primary germ cell layers (the other two being the mesoderm and endoderm) that make up the…
- Septum, nasal The dividing wall within the nose. The nasal septum runs down the middle of the nose creating two sides to…
- Testicles The testicles (also called testes or gonads) are the male sex glands. They are located behind the penis in a…
- Evolutionarily conserved gene A gene that has remained essentially unchanged throughout evolution. Conservation of a gene indicates that it…
- Flutter, atrial Well-organized but overly rapid contractions of the atrium of the heart (usually at a rate of 250-350…
- National Institute of Mental Health (NIMH) One of the National Institutes of Health in the U.S., NIMH's mission is to 'provide national leadership…
- Syndrome, superior vena cava The symptoms that result from compression of the large vein that carries blood down to the heart. The…
- Alice Stewart See: Stewart, Alice
- 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…