It's a tool for measuring angles.
I recommend going to Google Image Search and searching for "protractor" -- it will show you lots of images of protractors.
I've found Google Image Search very useful in the past when learning languages, especially "bigger" ones that tend to have webshops etc. in that language, for example to see what kinds of furniture or clothing speakers might include under a certain term.
Awesome! Thanks a lot!!! :-D
I would never have been able to guess that, not even reading the other explaination found above a second time! But it actually makes sense, especially the Welsh word! The Endlish word is still wierd, but I'll try to remember it.