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).
Cranial nerve, sixth
The sixth cranial nerve is the abducent nerve. It is a small motor nerve that has one task: to supply a muscle called the lateral rectus muscle that moves the eye outward. Paralysis of the abducent nerve causes inward turning of the eye…
Read the definitionRandom terms
Show more- Heterosexuality Sexuality directed toward someone of the opposite sex
- Hormone, progesterone A female hormone, progesterone is the principal progestational hormone. Progestational hormones prepare the…
- Nurses Health Study A very large and important prospective investigation into the risk factors for major chronic diseases in…
- Apopain See: Caspase 3
- Anesthetic A substance that causes lack of feeling or awareness. A local anesthetic causes loss of feeling in a part of…
- Extremity The extremities in medical language are not freezing cold or scorching heat but rather the uttermost parts of…
- Ribonucleic acid (RNA) A combination of ribonucleic acid (RNA) and protein. In autoimmune diseases, antibodies can form against…
- Liminal In neurolgy, at the threshold of perception to a sensory stimulus. In other words, just barely perceptible to…
- Anaphia The inability to feel touch. From the Greek prefix an, not + Greek haphe, touch = inability to (feel) touch…
- Tympano- Prefix indicating a relationship to the ear drum (tympanum). For example, tympanometry is a test that…
- RAST An allergy test done on a sample of blood. The aim with RAST, as with skin tests, is to check for allergic…
- Enteral Pertaining to the small intestine. As in enteral nutrition. Also called enteric