Why would you need a term for that? If this is to find something on the Web, better tell us what you are looking for.
I never heard about such term, but this is a part of "pull technology", in contrast to "push technology".
That means that "pulling" is a bad thing, this is periodic polling because of the draconian limitation of the model of the network communication. The server side is not "pushing" newly added modification to the client. This is a loose-loose situation: if you poll more frequently, you waste resources and traffic for nothing, if you poll rarely, you loose events in between.
This is a problem with the client-server database technologies and the Web; and some work-around solutions exist ("server push"). Too bad, you did not provide any information on the technologies you are using. For further detail, please see my past answer:
Application 'dashboard' for website accounts[
^].
—SA