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).
Step therapy
The practice of beginning drug therapy for a medical condition with the most cost-effective and safest drug therapy and progressing to other more costly or risky therapy, only if necessary. The aims are to control costs and minimize risks…
Read the definitionRandom terms
Show more- Line, central A catheter (tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava…
- Syndrome, hemolytic uremic See: Hermansky-Pudlak syndrome.
- Menopause, induced Menopause, induced: Induced menopause occurs when menopause is due to an unusual ('unnatural') event. It is…
- Pinworm infection Pinworm infection: An infection caused by a small, white intestinal worm: the pinworm or, more formally…
- Cyst, ovarian A fluid-filled sac in the ovary. The most common type of ovarian cyst is called a follicular cyst. It results…
- Red jungle fowl genome The genome of Gallus gallus, the ancestor of domestic chickens. See: Chicken genome
- Fungiform Mushroom-shaped. From fungi-, fungus + forma, shape. The fungiform papillae are broad flat structures that…
- Syncope The temporary loss of consciousness upon coughing. Syncope is the temporary loss of consciousness or, in…
- Ulnar Referring to the larger of the two long bones in the forearm. (The smaller one is the radius). The ulna is on…
- Genes The basic biological units of heredity. Segments of deoxyribonucleic acid (DNA) needed to contribute to a…
- Specificity 1. The quality of being specific as, for example, she showed the use of specificity in her diagnosis. 2. The…
- Hypnic headache A relatively rare form of headache disorder in which the patient is awakened from sleep nightly, usually…