yep pretty much got it. it is hair that isn't fully processed in the time as directed. that is what texturized is.
and you shouldn't use a comb to comb through the relaxer. just allow it to process on it's on. you can do a little smoothing with your fingers or a the back of a comb, but not too much, since you aren't trying to achieve straightness. you just want to not the kink out.