Meaning of retraction

Guest   Sat Nov 03, 2007 8:30 pm GMT
What does it mean to retract? (pertaining to vowels)
Guest   Sat Nov 03, 2007 9:14 pm GMT
So, /æ/ -> [a] could be described as lowering and retracting /æ/?

Also, what's the opposite of retracting called?
Guest   Wed Nov 07, 2007 2:31 am GMT
So which is the version used in the Canadian shift? The front or central version? Or is it either one? Is there a big difference between the two?