Best Medical Dictionary Definition Apps

173+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated July 2026

If you already know Merriam, this is the deeper bench. 173+ medical dictionary definition apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 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
#39in Reference
Merriam-Webster Dictionary screenshot 1
Merriam-Webster Dictionary screenshot 2
Merriam-Webster Dictionary screenshot 3
Merriam-Webster Dictionary screenshot 4

Access America's most respected dictionary, updated with new words and meanings. This app offers offline access, voice search, daily vocabulary challenges, and a thesaurus. It's designed for English language reference, education, and vocabulary enhancement.

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
Medical Dictionary by Farlex screenshot 2
Medical Dictionary by Farlex screenshot 3
Medical Dictionary by Farlex screenshot 4

Access over 180,000 medical terms with clear definitions, audio pronunciations, and images from authoritative sources. This free app is ideal for healthcare professionals, students, and anyone curious about medical terminology, offering offline access to a vast glossary.

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
Medical Dictionary - English#3

Medical Dictionary - English by Ayyoub BELGAID

150,000 medical terms
Worth Considering
🏥 Medical
4.5(163 ratings)
FreeAds
Medical Dictionary - English screenshot 1
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Medical Dictionary - English screenshot 4

Access over 150,000 medical definitions, terminology, and abbreviations across all branches of medicine. This free resource offers clear explanations for medical professionals, students, and anyone interested in healthcare terms.

More Medical Dictionary Definition apps to explore

4
Dictionary.com: English Words
Dictionary.com: English Words
Dictionary.com: English Words
Dictionary, Thesaurus, Vocab
Free

Access over 2 million trusted definitions and synonyms for English words. Enhance your vocabulary with daily new words, example sentences, and audio pronunciations. This app provides grammar tips and editorial content to deepen your understanding of the English language.

2 million+ definitions and synonymsWord of the DayExample sentences
🔍 Reference
(328K)
free with in-app purchases
5
Dictionary.
Dictionary.
Dictionary.
by TheFreeDictionary.com
Free

Access a comprehensive dictionary, thesaurus, and translation tool with millions of definitions and synonyms. Explore specialty dictionaries, learn new words daily, and play word games. This app offers offline access and integrates seamlessly with other applications.

Offline dictionary and thesaurusMillions of definitions and synonymsWord of the Day and Idiom of the Day
🔍 Reference
(14K)
free with in-app purchases
6
AI Medical Dictionary
AI Medical Dictionary
AI Medical Dictionary
Definition of medical terms
Free
$1.99 | 100% OFF

Access a vast medical resource with AI-powered definitions for terms, conditions, and medications. Navigate easily, understand complex jargon, and expand your medical vocabulary. Stay informed about your health with this intuitive and reliable companion.

AI-powered search for terms and symptomsOffline access to core definitionsClear and concise explanations
📚 Education
(5)
freemium
7
Taber's Medical Dictionary
Taber's Medical Dictionary
Taber's Medical Dictionary
75,000 Terms, Images, Video...
Free

Access a comprehensive medical dictionary with over 75,000 terms, definitions, images, and audio pronunciations. This resource is designed for health professionals, offering quick access to critical medical information, including nutrition, abbreviations, and immunization schedules.

75,000+ in-depth definitions1,300+ high-quality images130+ videos
🏥 Medical
(1.1K)
free with in-app purchases
8
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Premium Ad-free Dictionary
$9.99

Access America's leading dictionary with over 15,000 extra entries for people and places. Enjoy offline access, voice search, and daily vocabulary builders. This app offers expert word guidance with a thesaurus and example sentences.

Ad-free experience15,000+ premium entriesOffline dictionary access
🔍 Reference
(22K)
freemium
9
Liixuos Medical Dictionary
Liixuos Medical Dictionary
Liixuos Medical Dictionary
Arabic Medical Dictionary
Free

This app offers a comprehensive medical dictionary, translating over 140,000 terms from English to Arabic. It functions offline for translations and features a user-friendly interface with search, favorites, and history.

Offline English to Arabic translationOver 140,000 medical termsEnglish definitions available (online)
🏥 Medical
(5)
free
10
Liixuos Medical Dictionary En
Liixuos Medical Dictionary En
Liixuos Medical Dictionary En
English Medical Dictionary
Free

An offline English medical dictionary with over 130,000 terms. It offers a beautiful, user-friendly interface with easy search and the ability to save favorite terms. Ideal for medical students and professionals.

Offline medical definitions130,000+ medical termsEasy search with suggestions
🏥 Medical
(2)
free
11
Nursing Dictionary by Farlex
Nursing Dictionary by Farlex
Nursing Dictionary by Farlex
Medical and Drug Definitions
Free

Access over 56,000 medical terms and 4,000 medication entries with clear, in-depth definitions from authoritative sources. This app provides comprehensive information on diseases, treatments, anatomy, and more, with features like voice search and audio pronunciations.

56,000+ medical terms and definitions4,000+ medication entriesThousands of medical abbreviations
🏥 Medical
(806)
free with in-app purchases
12
Skyscape Medical Library
Skyscape Medical Library
Skyscape Medical Library
350+ Medical Resources & Tools
Free

Access over 350 trusted medical resources, including drug information, clinical calculators, and disease guides. This decision-support tool helps healthcare professionals make informed decisions at the point of care with continuously updated content and powerful search capabilities.

350+ Medical ResourcesDrug Information & InteractionsClinical Calculators
🏥 Medical
(2.9K)
free with in-app purchases
13
8000+ Medical Terms Dictionary
8000+ Medical Terms Dictionary
8000+ Medical Terms Dictionary
Medical Terms & Definitions
Free
🏥 Medical
(0)
14
Urban Dictionary
Urban Dictionary
Urban Dictionary
by Urban Dictionary LLC
Free

Access a vast collection of user-submitted definitions for slang and non-slang words. Search, vote on definitions, and discover new words with daily updates. Share interesting terms easily with friends.

Unlimited free searchesSlang and non-slang definitionsVote on definitions
🔍 Reference
(3.5K)
free
15
Etymonline English Dictionary
Etymonline English Dictionary
Etymonline English Dictionary
Dictionary to Build Vocabulary
Free

Explore the origins and history of English words with this comprehensive dictionary app. It offers instant search, related word suggestions, and an offline mode for premium users. Enhance your vocabulary and understanding of word roots.

Word origin explorationInstant search with suggestionsRelated words by root
📚 Education
(11K)
free with in-app purchases
16
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
by TheFreeDictionary.com
$9.99

Access a comprehensive offline dictionary and thesaurus with extensive content in multiple languages. Explore definitions, synonyms, and specialized dictionaries for various fields. Enjoy an ad-free experience with features like word games and instant lookups.

Ad-free experienceOffline English dictionary and thesaurusOffline dictionaries in 13 languages
🔍 Reference
(2.5K)
paid
17
Medicine Dictionary
Medicine Dictionary
Medicine Dictionary
and Prescription Drug Guide
Free

Access comprehensive information on over 4,000 prescription and over-the-counter medications. This drug dictionary provides details on generic and brand names, side effects, interactions, and more, trusted by healthcare professionals.

4,000+ prescription and OTC medicationsDetailed drug entriesUnlimited bookmarks
🏥 Medical
(904)
free with in-app purchases
18
Learn Drug, Medical Dictionary
Learn Drug, Medical Dictionary
Learn Drug, Medical Dictionary
Medical - Drug - Disease Terms
Free

Access a comprehensive medical dictionary with definitions for terms, drugs, and diseases. Get detailed information on usage, side effects, symptoms, causes, and treatments. Features include search, bookmarking, sharing, and pronunciation.

Medical term definitionsDrug information (usage, side effects)Disease details (symptoms, treatment)
🏥 Medical
(1.2K)
free with in-app purchases
19
Dorland Pkt Medical Dictionary
Dorland Pkt Medical Dictionary
Dorland Pkt Medical Dictionary
Dorland's Med Guide
Free
🏥 Medical
(0)
20
WordWeb Dictionary
WordWeb Dictionary
WordWeb Dictionary
Offline ad-free dictionary
Free

This app provides a comprehensive offline English dictionary and thesaurus with fast searching, spelling suggestions, definitions, and usage examples. It offers extensive word data and advanced search filters without requiring an internet connection.

Offline dictionary and thesaurusFast searchingSpelling suggestions
🔍 Reference
(85)
free