As for terminology, here is what it says:

Track bikes have rear-facing dropouts and
120mm-space hubs (rather than 130mm of
a road bike). Rear-facing dropouts offer
a stronger and simpler solution to
adjusting chain tension and accommodating
variations in sprocket (gear) sizes.

Page 188,

@book{complete-road-bike-maintenance,
author = {Guy Andrews},
ISBN = {978 1 4081 7093 9},
publisher = {Bloomsbury},
title = {Complete Road Bike Maintenance},
year = 2013
}

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