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.
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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).
Regulatory T cell
A T cell (T lymphocyte) that regulates the activity of another T cell, usually by suppressing its activity. This process can be beneficial or harmful. There are several different types of regulatory T cells
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- Fusiform aneurysm A vascular outpouching shaped like a spindle. A fusiform widening of an artery or vein. An aneurysm is a…
- MELD Acronym for Model End Stage Liver Disease. A disease severity scoring system for adults with liver disease…
- Exercise, passive Movement of the body, usually of the limbs, without effort by the patient. The patient is passive
- Intractable Unstoppable. For example, intractable diarrhea or intractable pain.
- Somnolent Sleepy or tending to cause sleep. 'Somnolent' came from French. It descends from the Latin 'somnus' meaning…
- Blood in the eye Medically known as a subconjunctival hemorrhage. A very common cause of a painless bloody eye usually first…
- Stroke, heat Stroke, heat: Heat stroke can be LIFE-THREATENING! Victims of heat stroke almost always die, so immediate…
- Oral surgeon A dentist with special training in surgery of the mouth and jaw.
- Homocysteine Homocysteine: An amino acid produced by the body, usually as a byproduct of consuming meat. Homocysteine is…
- Grand mal epilepsy See: Grand mal
- Metrorrhagia Uterine bleeding at irregular intervals, particularly between the expected menstrual periods. Metrorrhagia…