Sentence:  For a moment she paused by the taxi-stand and watched them—wondering that but a few years before she had been of their number, ever setting out for a radiant Somewhere, always just about to have that ultimate passionate adventure for which the girls' cloaks were delicate and beautifully furred, for which their cheeks were painted and their hearts higher than the <WSD>transitory</WSD> dome of pleasure that would engulf them, coiffure, cloak, and all. 
Meaning of the word marked with <WSD> tags:  Lasting only a short time; temporary.