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).
Epigastrium
The part of the abdominal wall above the umbilicus (belly button). The hypogastrium is the part of the abdominal wall below the umbilicus. The abdominal wall can thus be divided into upper and lower halves. Or it can be further divided…
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Show more- Systole The time period when the heart is contracting. The period specifically during which the left ventricle of the…
- Cogan syndrome Arteritis (also referred to as vasculitis) that involves the ear. This condition is called Cogan syndrome…
- Infant formula A substitute for breast milk for feeding infants. Pediatricians generally advise exclusively breastfeeding…
- Adenine (A) One member of the A-T (adenine-thymine) base pair in DNA. The other base pair in DNA is G-C…
- Atlas The atlas is the first cervical (neck) vertebra (symbol: C1). It supports the head. The atlas bone is named…
- Mouse genome All of the genetic information contained in the laboratory mouse (Mus musculus). The genomes of particular…
- Estrogen/progestin therapy Abbreviated EPT. A combination of the hormones estrogen and progestin. Taken by women, the estrogen in the…
- Chromosome 3 One of the largest human chromosomes, comprising approximately 6.5% of the human genome. Chromosome 3 has…
- Fear of having a malformed child An abnormal and persistent fear of bearing a malformed child is termed teratophobia. A phobia is an…
- Volvulus Abnormal twisting of the intestine which can impair the blood flow to the intestine. Volvulus can lead to…
- Disease, Chagas See: Chagas disease.
- Erection, penile When the penis fills with blood and is rigid. The penis contains two chambers, called the corpora cavernosa…