What is total refraction?

What is total refraction? I know what total internal reflection is --
when a beam of light crosses from a higher refractive index to a lower
one at an angle greater than the critical angle, resulting in the beam
being reflected--, but I only heard about total refraction on a
wikipedia writeup, which didn't explain it very well. I know how it
happens --when you pass a beam of light b/w two media w/ opposite
refractive indices--, but what would you see when it occurs?

Is it possible to combine the two effects? Or is total refraction a
special case of total internal reflection?

Thank you!!!!

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