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).
Vaccination, HIB
This immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria responsible for a range of serious 'invasive' diseases including meningitis with potential brain damage and epiglottitis with…
Read the definitionRandom terms
Show more- Fear of depths An abnormal and persistent fear of depths. Sufferers of this fear experience anxiety even though they realize…
- Cortex The outer portion of an organ. The outer portion of the adrenal gland is called the adrenal cortex; the outer…
- Positive clinical trial A clinical trial that shows that the new treatment has a large beneficial effect and is superior to standard…
- Thymoglobulin A brand name for antithymocyte globulin
- Trabecula A partition which divides or partly divides a cavity. > >One of the strands of connective tissue projecting…
- HAART Stands for highly active antiretroviral therapy. Treatment with a very potent drug 'cocktail' to suppress the…
- Flutter Flutter is a rapid vibration or pulsation. The difference between flutter and fibrillation is that flutter is…
- QRS complex The deflections in the tracing of the electrocardiogram (ECG or EKG), comprising the Q, R, and S waves, that…
- Microorchidism Abnormally small testes. To determine if the testes are too small, a device called an orchidometer is used…
- Natural family planning Also known as fertility awareness, periodic abstinence and the rhythm method, this approach entails not…
- H and H H and H, sometimes written as 'H&H', is a popular shorthand for hemoglobin and hematocrit, two very…
- Occult Hidden. Occult blood is hidden from the eye but is nonetheless present and can be detected by chemical tests…