Yes, I agree .... sidelight is more apt !! So, the next picture with a "T"
(if you cannot find anything in "X", you can try with the second last letter "O")
Why not Denis .... if we can accept "bulbous bow" so can we the X - bow !!(Maybe it should become an add-on in SSE) If anybody wants to some reading about this the check this link:-http://www.stowmasters.com/xbow.htm