Getting full (purpose, usage) Table names in SAP Hana

Each table in SAP Hana has a purpose, for example, BSEG is Accounting Document Segment and BKPF is Accounting Document Header.

Is there anything in Hana (along the lines of Select * From Tables) or a full list elsewhere on the Intertubes, that will get me the purpose\usage of each table in Hana?

I’m trying to put together a Workflow for Alfred that’ll allow me to look up the definitions and it would be nice if I can get it to tell me “Look Up BSEG (Accounting Document Segment)” as I’m searching inside the workflow.

I’ve already got the list of names, just really could do with that purpose\usage if possible!