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).
Type II error
The statistical error (said to be 'of the second kind' or beta error) made in testing an hypothesis when it is concluded that a treatment or intervention is not effective when it really is. Sometimes referred to as a false negative
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Show more- Skull, hair-on-end Thin fine linear extensions radiating out from the skull that look on an X-ray like hair standing 'on-end'…
- Sedative A drug that calms a patient down, easing agitation and permitting sleep. Sedatives generally work by…
- Plague, bubonic The most common form of the plague named for the characteristic buboes which are enlarged lymph nodes…
- Lithotripsy A procedure to break a stone into small particles that can be passed in the urine.
- Brunhilde virus Type 1 poliovirus. Named after a female chimpanzee from which it was first isolated. There are two other…
- MRD Minimal residual disease, evidence for the presence of residual malignant cells, even when so few cancer…
- Muscle, subscapularis >The subscapularis muscle; >The supraspinatus muscle, which is responsible for elevating the arm and moving…
- Varicella rash Rash: Varicella (chickenpox) is characterized by a rash, often the first sign of the disease. The rash of…
- Frontal lobe The part of each hemisphere of the brain located behind the forehead that serves to regulate and mediate the…
- Infection, pork tapeworm Known medically as cysticercosis, an infection caused by Taenia solium (the pork tapeworm). Infection occurs…
- Bag, air A bag that fills with air, designed for frontal impact crashes, the kind of crashes which account for more…
- Hypovolemia An abnormal decrease in blood volume or, strictly speaking, an abnormal decrease in the volume of blood…