Noun
subforum (plural subforums)
(Internet) A single message board that is part of an online discussion forum.
If you page through Tamriel Rebuilt’s massive, sprawling "Asset Browser" subforum, you’ll find reams of doodads, NPCs, sound effects, and prospective quests authored by specific members of the labor pool. Source: Internet
Is this thread the first step in the direction of a badly needed History & Philosophy of Science subforum? Source: Internet