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).
Myelodysplastic syndrome
A group of bone marrow disorders characterized by the underproduction of one or more types of blood cells due to dysfuntion of the marrow. The myelodysplastic syndromes (MDS) may arise de novo (newly) or be secondary to treatment with…
Read the definitionRandom terms
Show more- Lys Lysine. See also: Amino acid symbols
- Grand mal epilepsy See: Grand mal
- D (drug caution code) Abbreviation on a medication that indicates caution because the medication may cause drowsiness. While not a…
- Protease inhibitor One of a class of anti-HIV drugs designed to inhibit the enzyme protease and thereby interfere with virus…
- APC (immunology) Antigen-presenting cell, a cell that can 'present' antigen in a form that T cells can recognize it. Among the…
- Adenomyoma A nodule that forms around tissue of the inner uterus (endometrial tissue) as a result of adenomyosis. See…
- Volume, stroke Stroke: The amount of blood pumped by the left ventricle of the heart in one contraction. The stroke volume…
- Congenital ptosis of the eyelids Drooping of the upper eyelids at birth. The lids may droop only slightly or they may cover the pupils and…
- Onychomycosis, proximal white subungual The rarest form of fungus infection of the finger or toenail. (Fungus infection of the finger or toenail is…
- Poison Any substance that can cause severe distress or death if ingested, breathed in, or absorbed through the skin…
- Orthotic A support, brace, or splint used to support, align, prevent, or correct the function of movable parts of the…
- Crick-Brenner experiment An elegant and important experiment performed in 1961 by Francis Crick and Sydney Brenner. The experiment…