1. a person who leads or is in charge of a meeting, ceremony, or other formal gathering

Examples

• The presider called the meeting to order at 9 AM.
• As presider of the ceremony, she welcomed all the guests.
• The board elected a new presider for the annual conference.
• The presider maintained order during the heated debate.
• Each committee needs an experienced presider to guide discussions.
• The presider announced the agenda items for the day.