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).
Anesthesia
Loss of feeling or awareness. A general anesthetic puts the person to sleep. A local anesthetic causes loss of feeling in a part of the body such as a tooth or an area of skin without affecting consciousness. Regional anesthesia numbs a…
Read the definitionRandom terms
Show more- Keratolytic Pertaining to keratolysis, the softening and shedding of the horny outer layer of the skin. A keratolytic…
- Thyroglossal cyst A fluid-filled sac present at birth in the midline of the neck. A thyroglossal cyst is a congenital…
- Sebaceous gland A normal gland of the skin which empties an oily secretion into the hair follicle near the surface of the skin
- Pulmonary stenosis The pulmonary valve is too tight so that the flow of blood from the right ventricle of the heart into the…
- Dysmorphophobia Excessive dislike of a part of ones body. See: Body dysmorphic disorder
- Physicians' Desk Reference A thick volume that provides a guide to all prescription drugs available in the United States. Although not…
- Cyclic AMP-dependent protein kinase See: Protein kinase A
- Caffeine A stimulant found naturally in coffee beans, tea leaves, cocoa beans (chocolate) and kola nuts (cola) and…
- Abstinence, periodic Also known as fertility awareness, natural family planning, and the rhythm method, this approach entails not…
- Tamoxifen (Nolvadex) An antiestrogen (a drug that blocks the effects of estrogen) which competes with estrogen for binding sites…
- Streptococcus pneumoniae (pneumococcus) A type of bacterium that comes in pairs and is shaped like a lancet (a surgical knife with a short wide…
- Dioscorides Dioscorides of Anazarbus. First century Greek physician, botanist and pharmacologist whose encyclopedia of…