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).
Poisoning, lead
An environmental hazard capable of causing brain damage. In the US lead poisoning is formally defined as having at least 10 micrograms of lead per deciliter of blood. (The average level of lead, for people ages 1 to 70, is 2.3 micrograms.)…
Read the definitionRandom terms
Show more- Blister A collection of fluid underneath the top layer of skin (epidermis). One that is more than 5 mm in diameter…
- Recurrent Back again. A recurrent fever is a fever that has returned after an intermission: a recrudescent fever
- Aspiration, fine needle See Fine needle aspiration
- Islet cell carcinoma See: Islet cell cancer
- Pulse, water hammer A jerky pulse that is full and then collapses because of aortic insufficiency (when blood ejected into the…
- Cockle The ventricle of the heart. The origin of the word cockle in this sense is a matter of conjecture but in…
- Sedative A drug that calms a patient down, easing agitation and permitting sleep. Sedatives generally work by…
- Fetal distress Compromise of the fetus during the antepartum period (before labor) or intrapartum period (birth process)…
- Hemoglobin normal values Hemoglobin is the oxygen-carrying pigment in the blood, the predominant protein in the red blood cells. In…
- Childbirth assistant See: Doula (the first meaning)
- Rash, varicella Rash, varicella: Varicella (chickenpox) is characterized by a rash, often the first sign of the disease. The…
- Vagus nerve A remarkable nerve that supplies nerve fibers to the pharynx (throat), larynx (voice box), trachea…