Online Medical Dictionary & Terminology Search

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The Definitive Medical Dictionary for Students and Clinicians.

From “Alopecia” to “Zoonosis.” Instantly access clear, clinician-verified definitions for over 100,000 medical terms, diseases, and procedures.

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📚 Medical Dictionary

Look up medical terms, definitions, synonyms, and related conditions.

🤖 AI-Powered Medical Dictionary

Look up any medical term, condition, or procedure with comprehensive definitions and clinical context.

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Core Features

More Than Just Definitions

A standard dictionary tells you what a word means. [Your Tool Name] tells you how it connects to clinical practice.

  • 🗣️ Audio PronunciationNever mispronounce ‘Sphygmomanometer’ or ‘Arrhythmia’ again. Click to hear the correct standard pronunciation.
  • 🔗 Connected IntelligenceWhen you look up a disease (e.g., “Asthma”), we don’t just define it. We link you directly to the Drug Database for relevant treatments (Bronchodilators) and Guidelines.
  • 🏛️ Etymology & RootsMaster medical terminology by understanding the source. We break words down into their Greek and Latin roots (e.g., Myocarditis: Myo [muscle] + card [heart] + itis [inflammation]).
  • 🖼️ Visual AidsComplex anatomy is hard to visualize with text alone. Our entries include high-resolution diagrams and clinical illustrations for anatomical terms.

User Segments

Who Uses This Dictionary?

UserBenefit
Medical StudentsMaster the “Prefix-Root-Suffix” system to memorize terms faster.
PatientsTranslate your discharge summary or lab report into plain English.
Medical CodersVerify terminology for accurate ICD-10 and CPT coding.
NursesQuick reference for obscure conditions encountered on the ward.

A Modern Encyclopedia of Medicine

Decoding Clinical Jargon

Medical records are full of abbreviations and complex terminology. Our medical abbreviation expander and glossary help bridge the gap between doctor and patient, ensuring better health literacy.

Cross-Referenced with Pharmacology

Unlike generic dictionaries, ours is built inside a pharmacology platform. If you search for a symptom like “Extrapyramidal Symptoms,” we immediately cross-reference it with our Side Effects Lookup to show you which antipsychotics might be the cause. It’s not just a definition; it’s a diagnostic aid.

Browse by Category

  • Anatomy: Organs, bones, nerves, and vascular systems.
  • Pathology: Diseases, syndromes, and genetic disorders.
  • Pharmacology: Drug classes, mechanisms, and chemical structures.
  • Procedures: Surgeries, diagnostic tests, and imaging techniques.

Frequently Asked Questions

Dictionary FAQ

Q: Are the definitions peer-reviewed?

A: Yes. Our content is sourced from standard medical dictionaries (like Dorland’s and Stedman’s) and reviewed by our clinical board for accuracy.

Q: Does it include abbreviations?

A: Yes. You can search for acronyms like “COPD,” “MI,” or “bid” to find their full clinical meaning.

Q: Is this content free?

A: The core Medical Dictionary is completely free to use for students and patients. Advanced features (like the Drug Interaction integration) require a free account.

How to cite this page - Vancouver Style
Mentor, Pharmacology. Online Medical Dictionary & Terminology Search. Pharmacology Mentor. Available from: https://pharmacologymentor.com/online-medical-dictionary-terminology-search/. Accessed on February 17, 2026 at 15:14.

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Medical Disclaimer

The medical information on this post is for general educational purposes only and is provided by Pharmacology Mentor. While we strive to keep content current and accurate, Pharmacology Mentor makes no representations or warranties, express or implied, regarding the completeness, accuracy, reliability, suitability, or availability of the post, the website, or any information, products, services, or related graphics for any purpose. This content is not a substitute for professional medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition and never disregard or delay seeking professional advice because of something you have read here. Reliance on any information provided is solely at your own risk.