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.
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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).
Trisomy
The presence of three copies of a chromosome rather than the normal two. The most common trisomies in newborns are trisomy 13 (Patau syndrome), trisomy 18 syndrome (Edwards syndrome) and trisomy 21 (Down syndrome). The most common trisomy…
Read the definitionRandom terms
Show more- Acute myelogenous leukemia Acute myelogenous leukemia: Abbreviated AML. Also called acute myeloid leukemia or acute nonlymphocytic…
- Nexus A connection or link. A causal connection. A connected series. 'Nexus' comes from the Latin 'nectere' meaning…
- Methadone treatment program A program for opiate addicts, usually conducted in an outpatient setting. These programs use a long-acting…
- Tongue, anterior See: Anterior tongue
- Perionychia An inflammation of the folds of tissue surrounding the nail due to infection. The infection may be bacterial…
- Imbricate Overlapping like shingles or tiles on a roof. The scales on a snake are imbricate. From the Latin imbricatus…
- Ulocarcinoma Cancer of the gums. It is often associated with the use of smokeless (chewing) tobacco. Diagnosis is by…
- Mycobacterium ulcerans The bacterium that causes Buruli ulcer. Mycobacterium ulcerans is a member of the family of bacteria that…
- Gastroschisis A birth defect in which there is a separation in the abdominal wall. Through this opening protrudes part of…
- NPCR National Program of Cancer Registries
- Diseases, Infectious, Nat'l Inst of Allergy & Allergy and (NIAID): This is one of the National Institutes of Health in the U.S. In formal terms, the…
- Vascular bed The vascular system, or a part thereof: for example, the pulmonary vascular bed describes the blood vessels…