DefinedTerm Schema for AEO:
Complete Guide
Master DefinedTerm Schema implementation to increase your visibility in AI-generated answers across ChatGPT, Perplexity, Gemini, and other AI search engines.
What is DefinedTerm Schema?
Defines a specific term or concept with its definition, making glossary content machine-readable.
In the context of Agent Experience Optimization (AEO), DefinedTerm schema provides the structured data that AI search engines need to understand, extract, and cite your content. Without it, AI engines must guess at your content's meaning — with it, you give them a clear signal that dramatically increases your chances of being cited in AI-generated answers.
AEO Impact: High — ideal for glossary pages and definitions, helping AI engines accurately cite your definitions when users ask 'what is' questions.
Use our free AEO audit tool to check if your site already implements DefinedTerm schema correctly.
Best Used For
DefinedTerm schema delivers the strongest AEO results when applied to these content types:
- Glossary pages
- Dictionary entries
- Terminology databases
- Concept definition pages
Not sure which schema types your site needs? Take our AEO readiness quiz for personalized recommendations.
Supported AI Platforms
DefinedTerm schema is recognized and utilized by these AI search platforms for generating answers and citations:
Learn about the differences between platforms in our ChatGPT vs Perplexity comparison.
Code Example
Here is a ready-to-use JSON-LD implementation of DefinedTerm schema. Copy this into a <script type="application/ld+json"> tag in your page's <head> section:
{ "@context": "https://schema.org", "@type": "DefinedTerm", "name": "Agent Experience Optimization", "description": "The practice of optimizing content to be cited by AI-powered AI agents.", "inDefinedTermSet": { "@type": "DefinedTermSet", "name": "AEO Glossary", "url": "https://example.com/aeo-glossary/" } }Generate customized schema for your site instantly with our free schema generator tool. Validate your implementation with Google's Rich Results Test.
Implementation Steps
Follow these steps to properly implement DefinedTerm schema on your website for maximum AEO impact:
- 1
Copy the JSON-LD code example above and customize it with your own data.
- 2
Add the script tag to your page's <head> section or use the Schema Generator tool.
- 3
Validate with Google's Rich Results Test and Schema.org Validator.
- 4
Monitor AI citations using the AEO Audit Tool to track improvements.
For a complete walkthrough, read our Ultimate Guide to AEO.
Common Mistakes to Avoid
Related Schema Types
These schema types are commonly used alongside DefinedTerm for a comprehensive AEO strategy:
FAQPage
High — pages with FAQPage schema earn significantly higher AI citation rates because AI engines can directly parse Q&A pairs.Marks up a page containing frequently asked questions and their answers for direct AI engine parsing...
Article
High — provides AI engines with author, date, and headline metadata critical for assessing content freshness and authority.Marks up written content like news articles, opinion pieces, and editorial content with metadata for...
ItemList
Medium — AI engines frequently reference list-style content for recommendation queries, and ItemList schema helps them parse ranked items accurately.Defines an ordered or unordered list of items, useful for rankings, top-N lists, and curated collect...
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Generate DefinedTerm Schema Instantly
Our free schema generator creates valid, AEO-optimized DefinedTerm JSON-LD in seconds. No coding required.