From a strictly scientific point of view halflife is what I said. It is also used for radioactive isotopes...going from amount x to 0.5x.
In this case, the halflife of stanozolol, the way I defined it, does not change b/c it is dissolved in water. And by the way, stanozolol is NEVER esterified, neither is oxandronolone and all orals I can think of right now except for primo acetate.
Ok, so the half life from a scientific point of view remains the same. Since the crystals take a while to dissociate, and during that time they are not available to you, the drug might take longer to "kick in".
So for the sake of simplicity, you can say that it does not have a "classical half life", but what the writers mean is that the pharmacokinetics are slightly changed for the reasons I described.