query-trigger
nounUK /ˈkwɪəri ˈtrɪɡə/
US /ˈkwɪri ˈtrɪɡər/
A query-trigger is something that makes a question start.
The teacher's question was a query-trigger that got the whole class talking.
OTHER MEANINGS
2. In computing, a query-trigger is a rule that runs automatically when a database query happens.
The query-trigger logged every search made on the site.
3. A query-trigger can be a word or event that causes a computer to look something up.
Typing a name into the box acts as a query-trigger for the search engine.
4. In conversation, a query-trigger is a remark that invites someone to ask more.
Her puzzled look was a query-trigger, so he explained again.