Best Medical Dictionary Definition Apps

174+ iOS apps curated and reviewed

4.7 avg rating
17 free apps
Updated May 2026

If you already know Merriam, this is the deeper bench. 174+ medical dictionary definition apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.

Top Picks for Medical Dictionary Definition

Merriam-Webster Dictionary#1

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Editor's Choice
🔍 Reference
4.8😊(320K ratings)
FreeAdsIn-App Purchases
#38in Reference
Merriam-Webster Dictionary screenshot 1
Merriam-Webster Dictionary screenshot 2
Merriam-Webster Dictionary screenshot 3
Merriam-Webster Dictionary screenshot 4

Access a premier iOS app for English language reference, education, and vocabulary building, with new word games and quizzes for learning. Features universal access, offline capabilities, voice search, daily word learning, thesaurus, example sentences, and pronunciations by real speakers. Enjoy features like favorite word syncing and Apple Watch integration. Subscribe to remove ads and access extra resources. Manage your subscription easily. Terms of Use: [Link to Terms of Use].

What We Love

  • 🚀 Easy to use
  • 👍 Comprehensive definitions
  • 👍 Helpful thesaurus
  • 🚀 Offline access

Room to Improve

  • 🐛 Ads can be intrusive
  • 🐛 Difficulty closing ads
  • 🐛 Repetitive game questions
Medical Dictionary by Farlex#2

Medical Dictionary by Farlex by Farlex, Inc.

Healthcare Terminology
Strong Contender
🏥 Medical
4.8😊(6.5K ratings)
FreeAdsIn-App Purchases
Medical Dictionary by Farlex screenshot 1
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Medical Dictionary by Farlex screenshot 4

Gain instant access to over 180,000 medical terms, 50,000 audio pronunciations, and 12,000 images with this user-friendly and comprehensive medical dictionary app. Perfect for healthcare professionals, students, and anyone interested in medical terminology. No subscriptions required - download now on iOS!

What We Love

  • 👍 Easy to use
  • 🚀 Quick search and lookup
  • 💡 Comprehensive medical terminology coverage
  • 🔍 Detailed and informative definitions

Room to Improve

  • 🐛 Occasional connectivity issues
  • 💰 Ads can be intrusive
  • 🔊 Lack of audio pronunciation feature
Dictionary.com: English Words#3

Dictionary.com: English Words by Curiosity Media, Inc.

Dictionary, Thesaurus, Vocab
Worth Considering
🔍 Reference
4.7😐(19K ratings)
FreeAdsIn-App Purchases
Dictionary.com: English Words screenshot 1
Dictionary.com: English Words screenshot 2
Dictionary.com: English Words screenshot 3
Dictionary.com: English Words screenshot 4
Dictionary.com: English Words screenshot 5
Dictionary.com: English Words screenshot 6

Access the ultimate English language learning app packed with quizzes, games, and over 2 million definitions and synonyms. Enhance your vocabulary with word puzzles and daily challenges, enjoy dark mode, offline access, voice search, and more. Improve your English skills effortlessly!

What We Love

  • 🚀 Robust dictionary and thesaurus
  • 🤓 Helpful resources like blogs and articles
  • 💡 Useful word games and puzzles
  • 👍 Easy to use and navigate

Room to Improve

  • 🐛 Inconsistent search results and missing definitions
  • 💸 Aggressive ads even after paid upgrades
  • 🤯 Frequent crashes and performance issues

More Medical Dictionary Definition apps to explore

4
Medical Dictionary - English
Medical Dictionary - English
Medical Dictionary - English
150,000 medical terms
Free

This medical dictionary app provides free access to over 150,000 medical definitions, terminology, and abbreviations across multiple disciplines, making it a valuable resource for medical professionals, students, and anyone looking to understand medical terms. Download the app to explore clear definitions and expand your medical knowledge.

🏥 Medical
(163)
5
Dictionary.
Dictionary.
Dictionary.
by TheFreeDictionary.com
Free

Discover a comprehensive Dictionary and Thesaurus app with a Word of the Day feature, offline access, and resources from top sources. Access millions of definitions, synonyms, translations, and more for a versatile language tool.

🔍 Reference
(14K)
6
AI Medical Dictionary
AI Medical Dictionary
AI Medical Dictionary
Definition of medical terms
Free
$1.99 | 100% OFF

This medical dictionary app provides instant access to clear and concise definitions for medical terms, conditions, and medications, empowering users to understand complex medical jargon and take control of their health knowledge. With its intuitive design and AI-powered search functionality, users can quickly find the information they need and stay informed about their health.

📚 Education
(5)
7
Learn Drug, Medical Dictionary
Learn Drug, Medical Dictionary
Learn Drug, Medical Dictionary
Medical - Drug - Disease Terms
Free

Access a comprehensive medical dictionary for quick definitions of medical terms, a drug dictionary for detailed drug information, and a disease dictionary for medical disorder references. Ideal for medical practitioners, students, and healthcare professionals.

🏥 Medical
(1.2K)
8
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Premium Ad-free Dictionary
$9.99

Access a premium ad-free dictionary app for iPhone, iPad, and Apple Watch with offline capabilities, new word games, and features like integrated thesaurus, vocabulary-building quizzes, voice search, and word of the day. Perfect for English language reference and vocabulary building. Find out more by checking the Application License Agreement and App Privacy Policy.

🔍 Reference
(22K)
9
Taber's Medical Dictionary
Taber's Medical Dictionary
Taber's Medical Dictionary
75,000 Terms, Images, Video...
Free

Get quick access to over 75,000 medical terms, images, videos, and more with this leading medical dictionary app. Features include in-depth definitions, audio pronunciations, and access to the official website for further resources. Perfect for health care professionals worldwide.

🏥 Medical
(1.1K)
10
Liixuos Medical Dictionary
Liixuos Medical Dictionary
Liixuos Medical Dictionary
Arabic Medical Dictionary
Free

This free medical dictionary app translates over 140,000 English medical terms to Arabic offline, and provides definitions online, with a user-friendly interface and features like search history and favourites. Download now to access a comprehensive medical dictionary at your fingertips.

🏥 Medical
(5)
11
Liixuos Medical Dictionary En
Liixuos Medical Dictionary En
Liixuos Medical Dictionary En
English Medical Dictionary
Free

Access a comprehensive offline English medical dictionary with over 130,000 terms, perfect for students and professionals. Download now to easily look up definitions, save favorites, and utilize its intuitive search.

🏥 Medical
(2)
12
Skyscape Medical Library
Skyscape Medical Library
Skyscape Medical Library
350+ Medical Resources & Tools
Free

Access 350 medical resources on the go with a comprehensive medical library app. Stay informed and up-to-date with the latest medical knowledge at your fingertips. Download now for convenient access to a wealth of medical information.

🏥 Medical
(2.9K)
13
Nursing Dictionary by Farlex
Nursing Dictionary by Farlex
Nursing Dictionary by Farlex
Medical and Drug Definitions
Free

Access a comprehensive Nursing Dictionary app specifically designed for nurses, featuring over 56,000 medical terms, 4,000 drug entries, and 9,000 images. Perfect for nurses, nursing students, or those interested in healthcare, this app offers in-depth definitions, medication details, and more from top medical sources. Available on iPhone and iPad, this free app provides advanced search options, audio pronunciations, and easy sharing capabilities, making it a valuable resource in the medical field.

🏥 Medical
(806)
14
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Thesaurus & Offline Vocabulary
Free

Access one of the highest authorities in language reference with the power of 15 major Oxford dictionaries at your fingertips. Explore advanced search and learning tools for a comprehensive linguistic experience.

🔍 Reference
(28K)
15
8000+ Medical Terms Dictionary
8000+ Medical Terms Dictionary
8000+ Medical Terms Dictionary
Medical Terms & Definitions
Free
🏥 Medical
(0)
16
ICD10 Consult
ICD10 Consult
ICD10 Consult
Smart, quick medical coding
Free

Access a comprehensive, efficient medical coding resource with smart search capabilities, custom code notes, and seamless cross-referencing of acronyms. Simplify code handling and access guidelines instantly, making coding accurate and hassle-free. Upgrade to ICD10 Consult for quick, precise coding without bulky reference books or confusion.

🏥 Medical
(14K)
17
Etymonline English Dictionary
Etymonline English Dictionary
Etymonline English Dictionary
Dictionary to Build Vocabulary
Free

A comprehensive English dictionary app offering word origins and vocabulary building tools. Features include instant search with spelling suggestions, offline dictionary access, related words, and premium ad-free and offline functionality. Explore word roots and enhance your vocabulary effortlessly.

📚 Education
(11K)
18
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
by TheFreeDictionary.com
$9.99

Access the premium ad-free Dictionary and Thesaurus Pro app by TheFreeDictionary.com for comprehensive offline dictionary and thesaurus content in multiple languages, including offline translations.

🔍 Reference
(2.5K)
19
Dorland Pkt Medical Dictionary
Dorland Pkt Medical Dictionary
Dorland Pkt Medical Dictionary
Dorland's Med Guide
Free
🏥 Medical
(0)
20
Dorland’s Medical Dictionary
Dorland’s Medical Dictionary
Dorland’s Medical Dictionary
Medical reference by Elsevier
$19.99
🏥 Medical
(167)