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).
Sickle cell trait
The condition in which a person has one copy of the gene for sickle cell (and is called a sickle heterozygote) but does not have sickle cell disease (which requires two copies of the sickle cell gene). If two people with sickle cell trait…
Read the definitionRandom terms
Show more- EECP See: Enhanced external counterpulsation
- Ipecac A naturally occurring substance with multiple properties including the ability to cause vomiting (emesis)…
- Hepatitis E virus The agent responsible for hepatitis E. Abbreviated HEV. For more information, see: Hepatitis E
- Paralysis, infantile (polio) Infantile paralysis is an old synonym for poliomyelitis, an acute and sometimes devastating viral disease…
- Unresectable Unable to be removed (resected) by surgery. To resect is to remove. At the time of diagnosis of esophageal…
- Range, normal By convention, the normal range for whatever (a particular test, condition, symptom, behavior, etc.) is set…
- Podiatrist A podiatrist is a physician that specializes in the evaluation and treatment of diseases of the foot. The…
- Methemoglobinemia The presence in the blood of methemoglobin, a form of hemoglobin that is useless for carrying oxygen and…
- Polyostotic fibrous dysplasia A mass of tissue that develops on the inside wall of a hollow organ, as within the colon or rectum. The word…
- Antagonist In biochemistry, an antagonist acts against and blocks an action. For example, insulin lowers the level of…
- Syndrome, trisomy 18 There are three instead of the normal two chromosomes #18. Children with this condition have multiple…
- Cyst of the ovary, follicular A fluid-filled sac in the ovary, the most common type of ovarian cyst. It results from the growth of a…