Finding the English definition of a word in VBA

Question

In Excel, if I enter the word \"PIZZA\" into a cell, select it, and SHIFT+F7, I can get a nice English dictionary definition of my favorite food. Pretty cool. But I\'d like

Answer 1

via the Research object

Dim rsrch as Research
rsrch.Query( ...

To query, you need the GUID of a valid web service. I haven't been able to find the GUID's for Microsoft's built in service though.