querier
nounUK /ˈkwɪəriə/
US /ˈkwɪriər/
A person who asks questions.
The curious querier raised her hand to ask the teacher about the stars.
OTHER MEANINGS
2. Someone who expresses doubt about something.
The querier doubted the plan and asked for more details.
3. A person who searches for information in a database or system.
The querier typed a keyword into the library catalog.
4. One who formally challenges or disputes a statement.
The querier challenged the official record during the meeting.