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).
Neurotransmitter
A chemical that is released from a nerve cell which thereby transmits an impulse from a nerve cell to another nerve, muscle, organ, or other tissue. A neurotransmitter is a messenger of neurologic information from one cell to another
Read the definitionRandom terms
Show more- AChE (acetylcholinesterase) Abbreviation for acetylcholinesterase. See: Acetylcholinesterase
- Seizure, clonic See: Clonic seizure
- Conservative mutation A change in a DNA or RNA sequence that leads to the replacement of one amino acid with a biochemically…
- Prenatal development The process of growth and development within the womb, in which a single-cell zygote (the cell formed by the…
- Schistosoma japonicum A species of trematode worm that parasitizes humans and that (like S. mansoni) causes liver and…
- Hyperlexia The presence of advanced ability to read compared to the ability to understand spoken language. Children with…
- Macroorchidism Abnormally large testes. To determine if the testes are too large, a device called an orchidometer is used…
- Triphalangeal Having three phalanges in a digit normally composed of only two
- Prostate enlargement Most prostatic enlargement is due to benign prostatic hyperplasia (BPH), a problem that bothers men…
- Breast discharge The spontaneous flow of fluid from the nipple at any time other than during nursing. This can be due to an…
- Staph infection Staph infection: A staph infection is an infection with a Staphylococcal bacteria.
- Labial Pertaining to the lip, one of the fleshy folds which surround the opening of the mouth or the vagina. Oral…