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).
Achlorhydria
A lack of hydrochloric acid in the digestive juices in the stomach (in technical terms, so that the pH of the stomach contents fails to fall below 4.0 under maximal stimulation). Hydrochloric acid helps digest food. Achlorhydria can be due…
Read the definitionRandom terms
Show more- Calorie A unit of food energy. In nutrition terms, the word calorie is used instead of the more precise scientific…
- Oesophagus Alternate spelling for esophagus. The British have an oesophagus while Americans have an esophagus. But on…
- Tamoxifen (Nolvadex) An antiestrogen (a drug that blocks the effects of estrogen) which competes with estrogen for binding sites…
- Ova Plural form of ovum
- Defect, atrial septal (ASD) A hole in the septum, the wall, between the atria, the upper chambers of the heart. Commonly called an ASD…
- Quotient The result of mathematical division. The I.Q. (Intelligence Quotient) is arrived at by dividing the person's…
- Pedodontics Children's dentistry.
- Blind spot In ophthalmology, a blind spot is: > >A small area of the retina where the optic nerve enters the eye; this…
- Neurotoxin A substance that causes damage to nerves or nerve tissue. For example, lead is a neurotoxin
- Sesquipedalian A long polysyllabic word that means having many syllables or using long words, as is all too often the case…
- Juvenile polyposis coli See: Juvenile polyposis
- OGG1 A DNA repair enzyme with antimutator activity. OGG1 is one of a number of enzymes that repair damage done to…