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).
Erection, penile
When the penis fills with blood and is rigid. The penis contains two chambers, called the corpora cavernosa, which run the length of the organ, are filled with spongy tissue, and surrounded by a membrane, called the tunica albuginea. The…
Read the definitionRandom terms
Show more- Urine blood Blood in the urine. Also called hematuria. Gross hematuria refers to blood that is so plentiful in the urine…
- Plodia interpunctella See: Meal moth
- Syndrome, Gerstmann-Straussler-Scheinker This condition is a primary problem of platelets in which the platelets lack the ability to stick adequately…
- Lingual 1. Having to do with the tongue. 2. Next to the tongue. In dentistry, the tooth surface next to the tongue…
- Nerve, afferent A nerve that carries impulses toward the central nervous system (CNS). The opposite of an afferent nerve is…
- TPN Total parenteral nutrition, intravenous feeding that provides a patient with all of the fluid and the…
- Activase Brand name of alteplase, a tissue plasminogen activator made by recombinant DNA technology. See: Tissue…
- Monozygous twins Twin: Identical twins that originate from a single fertilized egg (a zygote)
- Ileostomy An opening into the ileum, part of the small intestine, from the outside of the body. An ileostomy provides a…
- Anal incontinence Inability to hold feces in the rectum. This is due to failure of voluntary control over the anal sphincters…
- Counselor, genetic A health professional with a specialized graduate degree and experience in the areas of medical genetics and…
- Astigmatism Astigmatism: A common form of visual impairment in which part of an image is blurred, due to an irregularity…