Is The Stargate a wormhole?

Could you clarify for me, is the Stargate being referred to in this context a hypothetical astronomical phenomenon akin to a wormhole, which is a theoretical connection between two points in space-time allowing for faster-than-light travel? Or is it perhaps a reference to a fictional concept from a science fiction work, where the term 'Stargate' is used to describe a similar type of portal or gateway? I'm interested in understanding the precise nature of the question and the context in which it is being asked.