WCAG 3.1.3: Unusual Words
WCAG 3.1.3 Unusual Words is a level AAA success criterion from WCAG 2.0. Unusual words, jargon and idioms have a definition available.
People who do not know trade jargon cannot follow the specification.
How to test
Read product specs for coined terms. A definition should be linked or provided.
How to fix
Link the first use to a glossary, or explain it in the sentence.
Example that fails
A fabric page says GSM with no explanation.
Example that passes the check
GSM is followed by grams per square metre.
Shopify
Add a short definition in the product description the first time a trade term appears.
WooCommerce
Add a glossary page and link the term.
WordPress
Link jargon to a glossary post.
Wix
Add the definition beside the term.