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).
Sepsis, neonatal
A serious blood bacterial infection in an infant less than 4 weeks of age. Babies with sepsis may be listless, overly sleepy, floppy, weak, and very pale
Read the definitionRandom terms
Show more- Abscess, breast See: Breast abscess. see also: Breast infection; Mastitis
- Disease, His-Werner Named for the Swiss physician Wilhelm His, Jr. (who also described the bundle of His in the heart) and the…
- Renal capsule The fibrous connective tissue that surrounds each kidney
- Spine 1) The column of bone known as the vertebral column, which surrounds and protects the spinal cord. The spine…
- Specificity 1. The quality of being specific as, for example, she showed the use of specificity in her diagnosis. 2. The…
- Fever, chikungunya See: Chikungunya
- Sarcoma, metastatic A sarcoma that is spreading into other body tissues through the lymphatic system. The most common site for…
- Breast discharge The spontaneous flow of fluid from the nipple at any time other than during nursing. This can be due to an…
- Whipworm A nematode (roundworm) also called Trichuris trichiura. The third most common round worm of humans. The worm…
- Small saphenous vein The smaller of the two saphenous veins, the principal veins that run up the leg superficially (near the…
- Prior approval See: Prior authorization
- Abruptio (abruptio placentae) Premature separation of the placenta from the wall of the uterus. Abruption is a potentially serious problem…