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Best Zoology Dictionary Terms Concepts Apps

207+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated July 2026

Out of 207+ zoology dictionary terms concepts apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Zoology Dictionary Terms Concepts Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Zoology Dictionary Terms ConceptsZoology Dictionary Terms ConceptsFree—NoNoMay 2026
2Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoAug 2026
3Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesAug 2026
4Etymonline English DictionaryEtymonline English DictionaryFree4.9★ (11K)YesYesAug 2026
5Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesAug 2026
6Dictionary.Dictionary.Free4.8★ (15K)YesYesAug 2026
7Advanced Dictionary&ThesaurusAdvanced Dictionary&ThesaurusFree4.7★ (4.6K)NoYesAug 2026
8Urban DictionaryUrban DictionaryFree4.5★ (3.5K)—NoJul 2026

Top Picks for Zoology Dictionary Terms Concepts

Dictionary.com: English Words#2

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Strong Contender
🔍 Reference
4.8😐(328K 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

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.

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
Merriam-Webster Dictionary#3

Merriam-Webster Dictionary by Merriam-Webster, Inc.

Worth Considering
🔍 Reference
4.8😊(324K 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

More Zoology Dictionary Terms Concepts apps to explore

4
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
5
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Etymology & Offline Vocabulary
Free

Access a vast collection of dictionaries and thesauruses with definitions, pronunciations, and etymology. Features include offline access, advanced search options, and personalized word lists. Ideal for students, professionals, and word enthusiasts.

15 Oxford DictionariesThesaurus integrationAudio pronunciations
🔍 Reference
(29K)
free with in-app purchases
6
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
(15K)
free with in-app purchases
7
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
English dictionary with Audio
Free

This comprehensive English dictionary and thesaurus offers precise definitions, synonyms, antonyms, and related words. It features intelligent search tools, offline audio, and customizable themes to enhance your language learning experience.

140,000+ definitionsSynonyms, antonyms, and related wordsOffline audio pronunciation
🔍 Reference
(4.6K)
free with in-app purchases
8
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
9
Advanced English Dictionary.
Advanced English Dictionary.
Advanced English Dictionary.
English Dictionary & Thesaurus
$2.99

This comprehensive English dictionary and thesaurus offers offline access to millions of words, definitions, pronunciations, and etymologies. Explore word connections, sample sentences, and discover new vocabulary with advanced search and unique features.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(241)
paid
10
Zoology Dictionary - Offline
Zoology Dictionary - Offline
Zoology Dictionary - Offline
Zoology Terms with meaning
Free

This app provides a comprehensive offline dictionary for zoology terms, offering definitions, quizzes, and search functionality. It's designed for students and practitioners to quickly access and learn animal-related vocabulary.

Offline access to 2,000+ zoology termsSearch functionality for quick lookupsIn-app quizzes to test knowledge
📚 Education
(5)
free with in-app purchases
11
Marine Biology — dictionary
Marine Biology — dictionary
Marine Biology — dictionary
by AppCrab
Free

This app serves as a comprehensive personal study guide for marine biology. It offers a dictionary of terms with definitions, flashcards, visual explanations, and a powerful search function. Additionally, it includes 146 video lessons and a detailed textbook covering major topics.

Marine biology dictionaryFlashcards for termsVisual explanations
📚 Education
(9)
free with in-app purchases
12
Medical Dictionary by Farlex
Medical Dictionary by Farlex
Medical Dictionary by Farlex
Healthcare Terminology
Free

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.

180,000+ medical terms and definitionsOffline access to 40,000+ entriesThousands of medical abbreviations
🏥 Medical
(6.9K)
free with in-app purchases
13
Seek by iNaturalist
Seek by iNaturalist
Seek by iNaturalist
Identify plants & animals
Free

Identify plants, animals, and fungi using your phone's camera. Learn about the organisms around you and earn badges for your discoveries. It's a fun, kid-safe way to explore nature and expand your knowledge of the living world.

Image recognition for plant and animal identificationLearn about local speciesEarn badges for observations
📚 Education
(31K)
free
14
Medical Dictionary - English
Medical Dictionary - English
Medical Dictionary - English
150,000 medical terms
Free

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.

150,000+ medical definitionsExtensive terminology and abbreviationsCovers all branches of medicine
🏥 Medical
(163)
free with in-app purchases
15
Learn Botany, Biology &Zoology
Learn Botany, Biology &Zoology
Learn Botany, Biology &Zoology
by Pollmine.Com
Free

This app provides bite-sized video lessons and quizzes to help you learn Botany, Biology, and Zoology. An AI-driven coach guides your learning journey, making complex topics accessible. Dedicate just 60 minutes weekly to expand your knowledge in these scientific fields.

AI-driven coachBite-sized video lessonsInteractive quizzes
📚 Education
(161)
free
16
English Dictionary: LMDict
English Dictionary: LMDict
English Dictionary: LMDict
Dictionary English Offline
Free

Enhance your English vocabulary and grammar with a comprehensive offline dictionary. It offers extensive definitions, natural language examples, collocations, synonyms, and pronunciation guides for both British and American English.

Offline English dictionaryIntegrated grammar and thesaurusCollocations dictionary
📚 Education
(875)
free with in-app purchases
17
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
18
Dictionary
Dictionary
Dictionary
in Widget
Free

Instantly look up words from your iOS Home Screen without opening the app. Get definitions in seconds to aid studying, reading, or satisfying curiosity, keeping you focused and learning.

Home Screen widget for instant lookupsNo app launch requiredQuick definitions
🔍 Reference
(4)
ad-supported
19
Concise English Dictionary
Concise English Dictionary
Concise English Dictionary
English Dictionary & Thesaurus
$0.99

Explore a vast English dictionary and thesaurus with detailed definitions, pronunciations, and word origins. Access over 591,700 entries and 4.9 million words, with offline capabilities and a user-friendly interface for enhanced language learning.

Comprehensive dictionary databaseHigh-quality audio pronunciationsExtensive IPA pronunciation guides
🔍 Reference
(30)
paid
20
iNaturalist Classic
iNaturalist Classic
iNaturalist Classic
Connect with Nature
Free

Record and identify species encounters with a simple interface. Contribute to scientific research and learn about biodiversity. Connect with other nature enthusiasts and explore the natural world.

Identify species globallyRecord species sightingsContribute observations to science
📚 Education
(4.7K)
free

FAQ about Zoology Dictionary Terms Concepts

Are there free zoology dictionary terms concepts apps for iPhone?
Yes — 18 of the top zoology dictionary terms concepts apps we rank are free to download, including Zoology Dictionary Terms Concepts and Dictionary.com: English Words.
Zoology Dictionary Terms Concepts has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 207+ zoology dictionary terms concepts apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.