1. At which; upon which; whereupon; -- used relatively.
They vote; whereat his speech he thus renews. --Milton.
Whereat he was no less angry and ashamed than desirous to obey Zelmane. --Sir P. Sidney.
2. At what; -- used interrogatively; as, whereat are you offended?
adv 1: in consequence of which; "this is a statement whereat the
listeners may get angry" [syn: whereupon]
2: at or toward which; "we were at a party whereat there was
lots of dancing"