0 present participle of expatiate
1 to speak or write about something in great detail or for a long time:
It is perhaps worth expatiating slightly on the episode of the village hall.
I will this afternoon begin by expatiating at large upon the canons of financial orthodoxy.
I suggest to him that there is an easier explanation of the phenomenon that he is expatiating upon.
I spent a considerable time expatiating on the merits of forcing trade associations to register their rules.
I will not take up time in expatiating on that question.
He has been expatiating on the virtues of democracy.
We have heard him expatiating here again to-day.
He must not now start expatiating on the subject of boys.