It's Kleppner and Kolenkow's aforementioned observation regarding Coriolis acceleration(in polar coordinate) being real and different from Coriolis acceleration in rotating frame of reference, which should be the reason/point of discussion.
@berkeman, does the observation of Klepner and Kolenkow, as I have highlighted in the original post make sense to you..? Does it really depend upon how I define real and pseudo forces ? That would mean that what Kleppner and Kolenkow have written is right and the mistake lies in my understanding of the terms real and pseudo. As
@haruspex has mentioned in his comment above that the textbook's use of those terms is not "standard", by which I am assuming that he said the textbook's use of those terms is not "right" and is the source of my confusion regarding Coriolis acceleration. You have approved of haruspex's comment above, which would mean that you agree with his notion that the book's usage of those terms is not standard or right. What I do not understand is that how come now, it has been presumed by people in this thread that the source of my original question depends on how I personally define the terms real and pseudo, and that the book's statements are right after all.
For anyone reading this thread and willing to make an effort to understand what I had originally asked, and for the sake of taking this discussion forward, if it at all depends on my understanding of the terms real and pseudo, which I don't think it does, here's how I define real and pseudo: Any phenomena which happens in nature is real, and it can be experienced by our physiological senses, and can be experimented with, and empirically recorded for study, follows the rigors of scientific study and for which we base/modify our scientific study to match the observed natural phenomena.
The term pseudo is used to explain something about which the rigors of scientific method do not apply or no previously understood concepts work. For example, when someone says pseudoscience, for a branch of study, then what he/she means to say is that in his opinion, and to the extent of his understanding, he is not able to find the justification presented to explain the present phenomena as scientific, reasonable or effective, and to some degree is skeptical of the study being scientific at all. Similarly, for pseudo medicine, what someone saying it means is that the medicine that is purported to be effective and is based on science, is not so. In the context of Physics, pseudo means an entity(for lack of any better term) such as pseudo force, which does not actually act on the body, but is required to explain a phenomena of movement of a body in non-inertial frame of reference, for which the existing concepts which work in inertial frame of reference, do not work.
Though, I now have given up hope that anyone here will be able to give any further meaningful comments regarding the original question.