We found one dictionary that defines the word topic-based:

General (1 matching dictionary)

1. topic-based: Wordnik

▸ Words similar to topic-based ▸ Usage examples for topic-based ▸ Idioms related to topic-based ▸ Wikipedia articles (New!) ▸ Words that often appear near topic-based ▸ Rhymes of topic-based ▸ Invented words related to topic-based